{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"1518460","name":"Mudlick Mine","status":"Abandoned and Sealed","status_date":"2003-03-31","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Martin","nearest_town":"Inez","operator_id":"P00908","operator_name":"Martin County Coal Corp.","controller_id":"0127923","controller_name":"Alpha Natural Resources Holdings, Inc","district":"C07","office":"Hazard KY Field Office","employees":0,"latitude":37.775555,"longitude":-82.58},"coverage":{"contributingSources":15,"registeredSources":20,"sourceRows":411},"relationships":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present control"},"transactionTime":{"observedAt":"2026-10-17T05:35:58.500035+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"1518460","name":"Mudlick Mine"},"operator":{"type":"operator","id":"P00908","name":"Martin County Coal Corp."},"controller":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"1518460","name":"Mudlick Mine"},"validFrom":"1975-05-28","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|C02508|1975-05-28|2011-05-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00908","name":"Martin County Coal Corp."},"object":{"type":"mine","id":"1518460","name":"Mudlick Mine"},"validFrom":"2001-10-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|P00908|2001-10-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P00908","name":"Martin County Coal Corp."},"validFrom":"2001-10-11","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"1518460","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|P00908|2001-10-11|C02508|1975-05-28|59053"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"1518460","name":"Mudlick Mine"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|0041211|2011-06-01|2016-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P00908","name":"Martin County Coal Corp."},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"1518460","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|P00908|2001-10-11|0041211|2011-06-01|1885"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"1518460","name":"Mudlick Mine"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P00908","name":"Martin County Coal Corp."},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518460","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1518460|P00908|2001-10-11|0127923|2016-07-26|25428"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":5,"firstDate":"2001-12-06","lastDate":"2002-03-22","metrics":{"daysLost":333,"injuries":5,"fatalities":0,"recentRows":0,"restrictedDays":0,"contractorRecords":2},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"95922","DOCUMENT_NO":"220020840023","ACCIDENT_DT":"03/22/2002","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)","NO_INJURIES":"1","DAYS_LOST":"319","NARRATIVE":"EE WAS HANGING MINER CABLE WHEN HE FELT PAIN IN HIS BACK.","sourceDate":"2002-03-22"},{"SOURCE_ROW_NUMBER":"5852","DOCUMENT_NO":"220020880007","ACCIDENT_DT":"03/14/2002","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Struck by falling object","OCCUPATION":"Laborer, Bull gang, Faceman, Parts runner, Roustabout, Roof trimmer/scaler","NO_INJURIES":"1","DAYS_LOST":"6","NARRATIVE":"EE WAS TRAMMING LO TRACK FORKLIFT BETWEEN RIB & TRACK. A PIECE OF DRAWROCK APPROX. 15\"X 16\"X 3\" THICK FELL FROM TOP, BOUNCED UNDER CANOPY, STRIKING HIM ON THE SHOULDER. EE WAS RELEASED BY DR. TO RETURN TO WORK ON 3-25-02. HE QUIT & TOOK A JOB WITH ANOTHER COMPANY.","sourceDate":"2002-03-14"},{"SOURCE_ROW_NUMBER":"14403","DOCUMENT_NO":"220020140005","ACCIDENT_DT":"01/13/2002","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Apprentice, Trainee","NO_INJURIES":"1","NARRATIVE":"EE WAS IN THE PROCESS OF CUTTING HOLES IN A PIECE OF BELT THAT GOES IN THE MINER, WHEN HIS UTILITY KNIFE SLIPPED CUTTING HIS LEFT RING FINGER.","sourceDate":"2002-01-13"},{"SOURCE_ROW_NUMBER":"108699","DOCUMENT_NO":"220020700149","ACCIDENT_DT":"01/02/2002","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Over-exertion NEC","OCCUPATION":"Maintenance man, Mechanic,  Repair/Serviceman, Boilermaker, Fueler, Tire tech, Field service tech","NO_INJURIES":"1","DAYS_LOST":"8","NARRATIVE":"EE WAS ATTEMPTING TO BOOST 988 LOADER, WAS WALKING BACKWARDS HOLDING CABLES OFF OF GROUND WHEN HE STEPPED INTO A TIRE TRACK RUT TURNING HIS ANKLE SPRAINING RT. ANKLE.","sourceDate":"2002-01-02"},{"SOURCE_ROW_NUMBER":"95921","DOCUMENT_NO":"220013600072","ACCIDENT_DT":"12/06/2001","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"MACHINERY","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Roof bolter, Rock bolter,  Pinner, Mobile roof support operator (MRS)","NO_INJURIES":"1","NARRATIVE":"EE WAS OPERATING OFF SIDE ROOF BOLTER. HE WAS STARTING HIS TEEL AGAINST TOP WHEN IT KICKED OUT. IT STRUCK AN LACERATED HIS RIGHT CHEEK. LACERATION WAS APPROX ONE AND A HALF INCHES LONG AND REQ UIRED 10 STITCHES.","sourceDate":"2001-12-06"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2003-03-31","lastDate":"2003-03-31","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":65,"firstDate":"2001-11-20","lastDate":"2002-10-04","metrics":{"ss":17,"delinquent":65,"recentRows":0,"paidPenalty":6504,"proposedPenalty":6504,"currentAssessment":6504},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"976218","VIOLATION_NO":"4515723","ISSUE_DT":"10/04/2002","CFR_STANDARD_CD":"77.800-2","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"760.00","CURRENT_ASSESSMENT_AMT":"760.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-10-04"},{"SOURCE_ROW_NUMBER":"976217","VIOLATION_NO":"4515722","ISSUE_DT":"10/04/2002","CFR_STANDARD_CD":"77.512","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"760.00","CURRENT_ASSESSMENT_AMT":"760.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-10-04"},{"SOURCE_ROW_NUMBER":"975419","VIOLATION_NO":"7387916","ISSUE_DT":"03/27/2002","CFR_STANDARD_CD":"75.370(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"975418","VIOLATION_NO":"7387912","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.1607(cc)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"150.00","CURRENT_ASSESSMENT_AMT":"150.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975417","VIOLATION_NO":"7387911","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.505","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975416","VIOLATION_NO":"7387910","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.1605(d)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"66.00","CURRENT_ASSESSMENT_AMT":"66.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975415","VIOLATION_NO":"7387909","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.404(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"66.00","CURRENT_ASSESSMENT_AMT":"66.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975414","VIOLATION_NO":"7387908","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.404(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"150.00","CURRENT_ASSESSMENT_AMT":"150.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975413","VIOLATION_NO":"7387907","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.404(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975412","VIOLATION_NO":"7387906","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"77.1605(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"150.00","CURRENT_ASSESSMENT_AMT":"150.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975411","VIOLATION_NO":"7387905","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"75.1103-2(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"975410","VIOLATION_NO":"7387904","ISSUE_DT":"03/11/2002","CFR_STANDARD_CD":"75.1103-4(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-03-11"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":31,"firstDate":"2001-11-26","lastDate":"2002-03-25","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":1,"validSamples":30,"maxConcentration":1.386,"concentrationTotal":16.188},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1552423","CASS_NUM":"57411285","SMP_TAKEN_DT":"3/25/2002","CONC":".431","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"1288465","CASS_NUM":"57411351","SMP_TAKEN_DT":"3/25/2002","CONC":".258","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"1266426","CASS_NUM":"57411329","SMP_TAKEN_DT":"3/25/2002","CONC":".081","SMP_TYPE_CD_DESC":"INTAKE AIR","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"1190477","CASS_NUM":"57411330","SMP_TAKEN_DT":"3/25/2002","CONC":".719","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"346804","CASS_NUM":"57411334","SMP_TAKEN_DT":"3/25/2002","CONC":".464","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"169448","CASS_NUM":"57411319","SMP_TAKEN_DT":"3/25/2002","CONC":".967","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"577551","CASS_NUM":"50560048","SMP_TAKEN_DT":"3/8/2002","CONC":".286","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-08"},{"SOURCE_ROW_NUMBER":"1579237","CASS_NUM":"50560032","SMP_TAKEN_DT":"3/7/2002","CONC":".615","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-07"},{"SOURCE_ROW_NUMBER":"1593310","CASS_NUM":"50560053","SMP_TAKEN_DT":"3/6/2002","CONC":".662","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-06"},{"SOURCE_ROW_NUMBER":"1265576","CASS_NUM":"50560058","SMP_TAKEN_DT":"3/6/2002","CONC":".319","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-03-06"},{"SOURCE_ROW_NUMBER":"1579784","CASS_NUM":"50559954","SMP_TAKEN_DT":"2/22/2002","CONC":".228","SMP_TYPE_CD_DESC":"DESIGNATED AREA","SMP_USE_CD_DESC":"BIMONTHLY CYCLE/TRANSITION PERIOD SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"OCCUPATION CODE NOT FOUND","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-02-22"},{"SOURCE_ROW_NUMBER":"1237521","CASS_NUM":"57432062","SMP_TAKEN_DT":"1/23/2002","CONC":".93","SMP_TYPE_CD_DESC":"NON DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2002-01-23"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":3,"firstDate":"2002-03-28","lastDate":"2002-10-24","metrics":{"linkedIssuances":3},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":159,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":42,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":3,"firstDate":"2001-10-11","lastDate":"2001-10-11","metrics":{"recentRows":0,"currentOperatorTenures":3,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":16,"firstDate":"2001-11-19","lastDate":"2003-04-25","metrics":{"inspectors":19,"recentRows":0,"onSiteHours":193.5,"inspectionHours":317.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"721796","EVENT_NO":"6141235","INSPECTION_BEGIN_DT":"04/25/2003","INSPECTION_END_DT":"04/25/2003","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2003-04-25"},{"SOURCE_ROW_NUMBER":"665012","EVENT_NO":"4175440","INSPECTION_BEGIN_DT":"01/22/2003","INSPECTION_END_DT":"01/24/2003","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"2.25","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2003-01-22"},{"SOURCE_ROW_NUMBER":"547039","EVENT_NO":"5811976","INSPECTION_BEGIN_DT":"12/16/2002","INSPECTION_END_DT":"12/16/2002","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2002-12-16"},{"SOURCE_ROW_NUMBER":"1078136","EVENT_NO":"4174845","INSPECTION_BEGIN_DT":"10/03/2002","INSPECTION_END_DT":"11/01/2002","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"28.5","SUM_TOTAL_ON_SITE_HOURS":"15.5","sourceDate":"2002-10-03"},{"SOURCE_ROW_NUMBER":"1005409","EVENT_NO":"4166345","INSPECTION_BEGIN_DT":"07/09/2002","INSPECTION_END_DT":"08/08/2002","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.5","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2002-07-09"},{"SOURCE_ROW_NUMBER":"310420","EVENT_NO":"4166337","INSPECTION_BEGIN_DT":"03/29/2002","INSPECTION_END_DT":"06/26/2002","ACTIVITY_CODE":"AAA","ACTIVITY":"Regular Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"18","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2002-03-29"},{"SOURCE_ROW_NUMBER":"68071","EVENT_NO":"4174515","INSPECTION_BEGIN_DT":"03/27/2002","INSPECTION_END_DT":"04/18/2002","ACTIVITY_CODE":"BBB","ACTIVITY":"NOISE TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"832063","EVENT_NO":"4174513","INSPECTION_BEGIN_DT":"03/25/2002","INSPECTION_END_DT":"04/04/2002","ACTIVITY_CODE":"BAB","ACTIVITY":"RESP DUST TECH INSP - U. G. MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17","SUM_TOTAL_ON_SITE_HOURS":"9","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"434151","EVENT_NO":"4174802","INSPECTION_BEGIN_DT":"03/25/2002","INSPECTION_END_DT":"03/25/2002","ACTIVITY_CODE":"CAA","ACTIVITY":"SPOT INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"6.5","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"1136737","EVENT_NO":"4163103","INSPECTION_BEGIN_DT":"03/05/2002","INSPECTION_END_DT":"03/05/2002","ACTIVITY_CODE":"CEC","ACTIVITY":"VENTILATION TECHNICAL INVESTIGATION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2002-03-05"},{"SOURCE_ROW_NUMBER":"1048814","EVENT_NO":"4163960","INSPECTION_BEGIN_DT":"01/24/2002","INSPECTION_END_DT":"01/24/2002","ACTIVITY_CODE":"CCA","ACTIVITY":"ROOF CONTROL TECHNICAL INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2002-01-24"},{"SOURCE_ROW_NUMBER":"915076","EVENT_NO":"4174506","INSPECTION_BEGIN_DT":"01/23/2002","INSPECTION_END_DT":"02/22/2002","ACTIVITY_CODE":"BAB","ACTIVITY":"RESP DUST TECH INSP - U. G. MINES","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.5","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2002-01-23"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":6,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2002-Q4":{"hours":0,"employees":0,"production":0},"2002-Q3":{"hours":0,"employees":0,"production":0},"2002-Q2":{"hours":1102,"employees":9,"production":261},"2002-Q1":{"hours":22619,"employees":34,"production":109646},"2001-Q4":{"hours":13400,"employees":22,"production":88480}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":3,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2001":{"hours":13400,"employees":22,"production":88480},"2002":{"hours":23721,"employees":22,"production":109907}},"recentRecords":[]},{"id":"msha-mines","name":"Mines","domains":["identity","production","logistics"],"products":["mine identity","status","commodity","location","operator and controller"],"rowCount":1,"firstDate":null,"lastDate":null,"metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-noise-samples","name":"Noise Samples","domains":["health","safety","equipment"],"products":["hearing exposure","machine and manufacturer patterns","occupation coverage"],"rowCount":6,"firstDate":"2002-03-27","lastDate":"2002-03-27","metrics":{"recentRows":0,"doseOver100":0,"actDoseTotal":438,"pelDoseTotal":256},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"76676","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"058","ACT_DOSE_85":"85","PEL_DOSE_90":"69","SURVEY_TYPE":"I","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"76675","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (INTAKE SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"72","PEL_DOSE_90":"32","SURVEY_TYPE":"I","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"76674","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","MACHINE_CD":"37","MANUFACTURER_CD":"058","ACT_DOSE_85":"65","PEL_DOSE_90":"33","SURVEY_TYPE":"I","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"76673","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"SHUTTLE CAR OPERATOR (STANDARD SIDE)","MACHINE_CD":"37","MANUFACTURER_CD":"058","ACT_DOSE_85":"62","PEL_DOSE_90":"31","SURVEY_TYPE":"I","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"76672","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"058","ACT_DOSE_85":"87","PEL_DOSE_90":"62","SURVEY_TYPE":"I","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"76671","EVENT_NO":"4174515","SURVEY_DATE":"03/27/2002","OCCUPATION_CD_DESC":"ROOF BOLTER (TWIN HEAD) (RETURN SIDE)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"67","PEL_DOSE_90":"29","SURVEY_TYPE":"I","sourceDate":"2002-03-27"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":4,"firstDate":"2002-01-23","lastDate":"2002-03-25","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":21.7,"validSamples":4,"quartzPctTotal":79.2},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"19475","CASSETTE_NO":"57411330","SAMPLE_DT":"03/25/2002","QUARTZ_PCT":"19.6","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2002-03-25"},{"SOURCE_ROW_NUMBER":"47536","CASSETTE_NO":"50560061","SAMPLE_DT":"02/26/2002","QUARTZ_PCT":"21.7","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2002-02-26"},{"SOURCE_ROW_NUMBER":"52654","CASSETTE_NO":"50560063","SAMPLE_DT":"02/06/2002","QUARTZ_PCT":"17.6","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2002-02-06"},{"SOURCE_ROW_NUMBER":"81208","CASSETTE_NO":"57432057","SAMPLE_DT":"01/23/2002","QUARTZ_PCT":"20.3","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2002-01-23"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":66,"firstDate":"2001-11-20","lastDate":"2002-10-11","metrics":{"ss":17,"amountDue":6504,"contested":0,"amountPaid":6504,"recentRows":0,"section104d":0,"unterminated":1,"proposedPenalty":6504},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1003058","VIOLATION_NO":"4515726","VIOLATION_ISSUE_DT":"10/11/2002","PART_SECTION":"77.512","CIT_ORD_SAFE":"Order","NO_AFFECTED":"0","TERMINATION_DT":"10/15/2002","CONTESTED_IND":"N","sourceDate":"2002-10-11"},{"SOURCE_ROW_NUMBER":"1003057","VIOLATION_NO":"4515723","VIOLATION_ISSUE_DT":"10/04/2002","SIG_SUB":"N","PART_SECTION":"77.800-2","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/11/2002","PROPOSED_PENALTY":"760","AMOUNT_DUE":"760","AMOUNT_PAID":"760","CONTESTED_IND":"N","sourceDate":"2002-10-04"},{"SOURCE_ROW_NUMBER":"1003056","VIOLATION_NO":"4515722","VIOLATION_ISSUE_DT":"10/04/2002","SIG_SUB":"N","PART_SECTION":"77.512","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","PROPOSED_PENALTY":"760","AMOUNT_DUE":"760","AMOUNT_PAID":"760","CONTESTED_IND":"N","sourceDate":"2002-10-04"},{"SOURCE_ROW_NUMBER":"1003045","VIOLATION_NO":"7387916","VIOLATION_ISSUE_DT":"03/27/2002","SIG_SUB":"N","PART_SECTION":"75.370(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"3","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/27/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-03-27"},{"SOURCE_ROW_NUMBER":"1003044","VIOLATION_NO":"7387912","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"Y","PART_SECTION":"77.1607(cc)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"150","AMOUNT_DUE":"150","AMOUNT_PAID":"150","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003043","VIOLATION_NO":"7387911","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"N","PART_SECTION":"77.505","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003042","VIOLATION_NO":"7387910","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"Y","PART_SECTION":"77.1605(d)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"66","AMOUNT_DUE":"66","AMOUNT_PAID":"66","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003041","VIOLATION_NO":"7387909","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"Y","PART_SECTION":"77.404(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"66","AMOUNT_DUE":"66","AMOUNT_PAID":"66","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003040","VIOLATION_NO":"7387908","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"Y","PART_SECTION":"77.404(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"150","AMOUNT_DUE":"150","AMOUNT_PAID":"150","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003039","VIOLATION_NO":"7387907","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"N","PART_SECTION":"77.404(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003038","VIOLATION_NO":"7387906","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"Y","PART_SECTION":"77.1605(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/14/2002","PROPOSED_PENALTY":"150","AMOUNT_DUE":"150","AMOUNT_PAID":"150","CONTESTED_IND":"N","sourceDate":"2002-03-11"},{"SOURCE_ROW_NUMBER":"1003037","VIOLATION_NO":"7387905","VIOLATION_ISSUE_DT":"03/11/2002","SIG_SUB":"N","PART_SECTION":"75.1103-2(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/27/2002","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2002-03-11"}]}],"safety":{"href":"/api/v1/mines/1518460/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1518460/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.512","heading":"Inspection and cover plates.","id":"77.512","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.512","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"Inspection and cover plates on electrical equipment shall be kept in place at all times except during testing or repairs.","occurrenceCount":2},{"chapter":"I","heading":"Testing, examination, and maintenance of circuit breakers; record.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-I/section-77.800-2","part":"77","subchapter":"O","subpart":"I","id":"77.800-2","citation":"30 CFR 77.800-2","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.370","heading":"Mine ventilation plan; submission and approval.","id":"75.370","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.370","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a)(1) The operator shall develop and follow a ventilation plan approved by the district manager. The plan shall be designed to control methane and respirable dust and shall be suitable to the conditions and mining system at the mine. The ventilation plan shall consist of two parts, the plan content as prescribed in § 75.371 and the ventilation map with information as prescribed in § 75.372. Only that portion of the map which contains information required under § 75.371 will be subject to approval by the district manager.\n\n(2) The proposed ventilation plan and any revision to the plan shall be submitted in writing to the district manager. When revisions to a ventilation plan are proposed, only the revised pages, maps, or sketches of the plan need to be submitted. When required in writing by the district manager, the operator shall submit a fully revised plan by consolidating the plan and all revisions in an orderly manner and by deleting all outdated material.\n\n(3) (i) The mine operator shall notify the representative of miners at least 5 days prior to submission of a mine ventilation plan and any revision to a mine ventilation plan. If requested, the mine operator shall provide a copy to the representative of miners at the time of notification. In the event of a situation requiring immediate action on a plan revision, notification of the revision shall be given, and if requested, a copy of the revision shall be provided, to the representative of miners by the operator at the time of submittal;\n\n(ii) A copy of the proposed ventilation plan, and a copy of any proposed revision, submitted for approval shall be made available for inspection by the representative of miners; and\n\n(iii) A copy of the proposed ventilation plan, and a copy of any proposed revision, submitted for approval shall be posted on the mine bulletin board at the time of submittal. The proposed plan or proposed revision shall remain posted until it is approved, withdrawn or denied.\n\n(b) Following receipt of the proposed plan or proposed revision, the representative of miners may submit timely comments to the district manager, in writing, for consideration during the review process. A copy of these comments shall also be provided to the operator by the district manager upon request.\n\n(c) (1) The district manager will notify the operator in writing of the approval or denial of approval of a proposed ventilation plan or proposed revision. A copy of this notification will be sent to the representative of miners by the district manager.\n\n(2) If the district manager denies approval of a proposed plan or revision, the deficiencies of the plan or revision shall be specified in writing and the operator will be provided an opportunity to discuss the deficiencies with the district manager.\n\n(d) No proposed ventilation plan shall be implemented before it is approved by the district manager. Any intentional change to the ventilation system that alters the main air current or any split of the main air current in a manner that could materially affect the safety and health of the miners, or any change to the information required in § 75.371 shall be submitted to and approved by the district manager before implementation.\n\n(e) Before implementing an approved ventilation plan or a revision to a ventilation plan, persons affected by the revision shall be instructed by the operator in its provisions.\n\n(f) The approved ventilation plan and any revisions shall be—\n\n(1) Provided upon request to the representative of miners by the operator following notification of approval;\n\n(2) Made available for inspection by the representative of miners; and\n\n(3) Posted on the mine bulletin board within 1 working day following notification of approval. The approved plan and revisions shall remain posted on the bulletin board for the period that they are in effect.\n\n(g) The ventilation plan for each mine shall be reviewed every 6 months by an authorized representative of the Secretary to assure that it is suitable to current conditions in the mine.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1607","heading":"Loading and haulage equipment; operation.","id":"77.1607","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1607","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Vehicles shall follow at a safe distance; passing shall be limited to areas of adequate clearance and visibility.\n\n(b) Mobile equipment operators shall have full control of the equipment while it is in motion.\n\n(c) Equipment operating speeds shall be prudent and consistent with conditions of roadway, grades, clearance, visibility, traffic, and the type of equipment used.\n\n(d) Cabs of mobile equipment shall be kept free of extraneous materials.\n\n(e) Operators shall sit facing the direction of travel while operating equipment with dual controls.\n\n(f) When an equipment operator is present, men shall notify him before getting on or off equipment.\n\n(g) Equipment operators shall be certain, by signal or other means, that all persons are clear before starting or moving equipment.\n\n(h) Where possible, aerial tramways shall not be started until the tramway operator has ascertained that everyone is in the clear.\n\n(i) Dust control measures shall be taken where dust significantly reduces visibility of equipment operators.\n\n(j) Dippers, buckets, loading booms, or heavy suspended loads shall not be swung over the cabs of haulage vehicles until the drivers are out of the cabs and in safe locations, unless the trucks are designed specifically to protect the drivers from falling material.\n\n(k) Men shall not work or pass under the buckets or booms of loaders in operation.\n\n(l) Tires shall be deflated before repairs on them are started and adequate means shall be provided to prevent wheel locking rims from creating a hazard during tire inflation.\n\n(m) Electrically powered mobile equipment shall not be left unattended unless the master switch is in the off position, all operating controls are in the neutral position, and the brakes are set or other equivalent precautions are taken against rolling.\n\n(n) Mobile equipment shall not be left unattended unless the brakes are set. The wheels shall be turned into a bank or berm, or shall be blocked, when such equipment is parked on a grade.\n\n(o) Lights, flares, or other warning devices shall be posted when parked equipment creates a hazard to vehicular traffic.\n\n(p) Dippers, buckets, scraper blades, and similar movable parts shall be secured or lowered to the ground when not in use.\n\n(q) Shovel trailing cables shall not be moved with the shovel dipper unless cable slings or sleds are used.\n\n(r) Equipment which is to be hauled shall be loaded and protected so as to prevent sliding or spillage.\n\n(s) When moving between work areas, the equipment shall be secured in the travel position.\n\n(t) Any load extending more than 4 feet beyond the rear of the vehicle body should be marked clearly with a red flag by day and a red light at night.\n\n(u) Tow bars shall be used to tow heavy equipment and a safety chain shall be used in conjunction with each tow bar.\n\n(v) Railroad cars shall be kept under control at all times by the car dropper. Cars shall be dropped at a safe rate and in a manner that will insure that the car dropper maintains a safe position while working and traveling around the cars.\n\n(w) Railroad cars shall not be coupled or uncoupled manually from the inside of curves unless the railroad and cars are so designed to eliminate any hazard from coupling or uncoupling cars from inside of curves.\n\n(x) Persons shall wear safety belts when dropping railroad cars.\n\n(y) Railcars shall not be left on sidetracks unless ample clearance is provided for traffic on adjacent tracks.\n\n(z) Parked railcars, unless held effectively by brakes, shall be blocked securely.\n\n(aa) Railroad cars and all trucks shall be trimmed properly when they have been loaded higher than the confines of their cargo space.\n\n(bb) When the entire length of a conveyor is visible from the starting switch, the operator shall visually check to make certain that all persons are in the clear before starting the conveyor. When the entire length of the conveyor is not visible from the starting switch, a positive audible or visible warning system shall be installed and operated to warn persons that the conveyor will be started.\n\n(cc) Unguarded conveyors with walkways shall be equipped with emergency stop devices or cords along their full length.\n\n(dd) Adequate backstops or brakes shall be installed on inclined-conveyor drive units to prevent conveyors from running in reverse if a hazard to personnel would be caused.\n\n(ee) Aerial tram conveyor buckets shall not be overloaded, and feed shall be regulated to prevent spillage.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.505","heading":"Cable fittings; suitability.","id":"77.505","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.505","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"Cables shall enter metal frames of motors, splice boxes, and electric compartments only through proper fittings. When insulated wires, other than cables, pass through metal frames, the holes shall be substantially bushed with insulated bushings.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1605","heading":"Loading and haulage equipment; installations.","id":"77.1605","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Cab windows shall be of safety glass or equivalent, in good condition and shall be kept clean.\n\n(b) Mobile equipment shall be equipped with adequate brakes, and all trucks and front-end loaders shall also be equipped with parking brakes.\n\n(c) Positive-action type brakes shall be provided on aerial tramways.\n\n(d) Mobile equipment shall be provided with audible warning devices. Lights shall be provided on both ends when required.\n\n(e) Guard nets or other suitable protection shall be provided where tramways pass over roadways, walkways, or buildings.\n\n(f) Guards shall be installed to prevent swaying buckets from hitting towers.\n\n(g) Aerial tramway cable connections shall be designed to offer minimum obstruction to the passage of wheels.\n\n(h) Rocker-bottom or bottom-dump cars shall be equipped with positive locking devices, or other suitable devices.\n\n(i) Ramps and dumps shall be of solid construction, of ample width, have ample clearance and headroom, and be kept reasonably free of spillage.\n\n(j) Chute-loading installations shall be designed so that the men pulling chutes are not required to be in a hazardous position during loading operations.\n\n(k) Berms or guards shall be provided on the outer bank of elevated roadways.\n\n(l) Berms, bumper blocks, safety hooks, or similar means shall be provided to prevent overtravel and overturning at dumping locations.\n\n(m) Roadbeds, rails, joints, switches, frogs, and other elements on railroads shall be designed, installed, and maintained in a safe manner consistent with the speed and type of haulage.\n\n(n) Where practicable, a minimum of 30 inches continuous clearance from the farthest projection of moving railroad equipment shall be provided on at least one side of the tracks; all places where it is not possible to provide 30-inch clearance shall be marked conspicuously.\n\n(o) Track guardrails, lead rails, and frogs shall be protected or blocked so as to prevent a person's foot from becoming wedged.\n\n(p) Positive-acting stop-blocks, derail devices, track skates, or other adequate means shall be installed wherever necessary to protect persons from runaway or moving railroad equipment.\n\n(q) Switch throws shall be installed so as to provide adequate clearance for switchmen.\n\n(r) Where necessary, bumper blocks or the equivalent shall be provided at all track dead ends.","occurrenceCount":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.404","heading":"Machinery and equipment; operation and maintenance.","id":"77.404","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.404","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Safeguards for Mechanical Equipment","text":"(a) Mobile and stationary machinery and equipment shall be maintained in safe operating condition and machinery or equipment in unsafe condition shall be removed from service immediately.\n\n(b) Machinery and equipment shall be operated only by persons trained in the use of and authorized to operate such machinery or equipment.\n\n(c) Repairs or maintenance shall not be performed on machinery until the power is off and the machinery is blocked against motion, except where machinery motion is necessary to make adjustments.\n\n(d) Machinery shall not be lubricated while in motion where a hazard exists, unless equipped with extended fittings or cups.","occurrenceCount":3},{"chapter":"I","heading":"Automatic fire sensors; approved components; installation requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1103-2","part":"75","subchapter":"O","subpart":"L","id":"75.1103-2","citation":"30 CFR 75.1103-2","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1518460","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}