{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1519583","name":"No.1","status":"Abandoned and Sealed","status_date":"2013-06-28","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Harlan","nearest_town":"Cranks","operator_id":"0119857","operator_name":"State Line Mining, Inc.","controller_id":"C11620","controller_name":"Barry  Rogers","district":"C07","office":"Harlan KY Field Office","employees":0,"latitude":36.771944,"longitude":-83.137777},"coverage":{"contributingSources":11,"registeredSources":20,"sourceRows":87},"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":"2026-10-13T11:19:05.459773+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":"1519583","name":"No.1"},"operator":{"type":"operator","id":"0119857","name":"State Line Mining, Inc."},"controller":{"type":"controller","id":"C11620","name":"Barry  Rogers"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0119857","name":"State Line Mining, Inc."},"object":{"type":"mine","id":"1519583","name":"No.1"},"validFrom":"2011-10-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519583|0119857|2011-10-11|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11620","name":"Barry  Rogers"},"object":{"type":"mine","id":"1519583","name":"No.1"},"validFrom":"2011-10-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519583|C11620|2011-10-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11620","name":"Barry  Rogers"},"object":{"type":"operator","id":"0119857","name":"State Line Mining, Inc."},"validFrom":"2011-10-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519583","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519583|0119857|2011-10-11|C11620|2011-10-11|85012"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2013-06-28","lastDate":"2013-06-28","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":23,"firstDate":"2013-01-02","lastDate":"2013-05-08","metrics":{"ss":6,"delinquent":23,"recentRows":0,"paidPenalty":2713,"proposedPenalty":2713,"currentAssessment":2713},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1986946","VIOLATION_NO":"8399722","ISSUE_DT":"05/08/2013","CFR_STANDARD_CD":"75.310(c)(4)(i)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-05-08"},{"SOURCE_ROW_NUMBER":"1986945","VIOLATION_NO":"8399721","ISSUE_DT":"05/08/2013","CFR_STANDARD_CD":"75.310(a)(4)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-05-08"},{"SOURCE_ROW_NUMBER":"1986944","VIOLATION_NO":"8399713","ISSUE_DT":"04/18/2013","CFR_STANDARD_CD":"75.1102","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-18"},{"SOURCE_ROW_NUMBER":"1986943","VIOLATION_NO":"8399712","ISSUE_DT":"04/18/2013","CFR_STANDARD_CD":"75.523-2(a)(2)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"224.00","CURRENT_ASSESSMENT_AMT":"224.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-18"},{"SOURCE_ROW_NUMBER":"1986942","VIOLATION_NO":"8399711","ISSUE_DT":"04/17/2013","CFR_STANDARD_CD":"75.1702","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-17"},{"SOURCE_ROW_NUMBER":"1986941","VIOLATION_NO":"8399710","ISSUE_DT":"04/17/2013","CFR_STANDARD_CD":"75.400-2","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-17"},{"SOURCE_ROW_NUMBER":"1986940","VIOLATION_NO":"8399709","ISSUE_DT":"04/11/2013","CFR_STANDARD_CD":"77.1605(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1986939","VIOLATION_NO":"8399708","ISSUE_DT":"04/11/2013","CFR_STANDARD_CD":"75.1101-17","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1986938","VIOLATION_NO":"8399707","ISSUE_DT":"04/11/2013","CFR_STANDARD_CD":"75.400","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1986937","VIOLATION_NO":"8399706","ISSUE_DT":"04/11/2013","CFR_STANDARD_CD":"75.370(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1986936","VIOLATION_NO":"8399705","ISSUE_DT":"04/10/2013","CFR_STANDARD_CD":"75.1100-1(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-10"},{"SOURCE_ROW_NUMBER":"1986935","VIOLATION_NO":"8399704","ISSUE_DT":"04/10/2013","CFR_STANDARD_CD":"75.220(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2013-04-10"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":11,"firstDate":"2013-04-29","lastDate":"2013-05-17","metrics":{"recentRows":0,"cpdmSamples":0,"voidSamples":6,"validSamples":5,"maxConcentration":1.746,"concentrationTotal":5.297},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"604075","CASS_NUM":"51241114","SMP_TAKEN_DT":"5/17/2013","CONC":".391","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-17"},{"SOURCE_ROW_NUMBER":"779122","CASS_NUM":"51241081","SMP_TAKEN_DT":"5/16/2013","CONC":"1.746","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-16"},{"SOURCE_ROW_NUMBER":"478145","CASS_NUM":"51241003","SMP_TAKEN_DT":"5/15/2013","CONC":".096","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-15"},{"SOURCE_ROW_NUMBER":"549808","CASS_NUM":"51241107","SMP_TAKEN_DT":"5/14/2013","CONC":".258","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-14"},{"SOURCE_ROW_NUMBER":"1229555","CASS_NUM":"57992306","SMP_TAKEN_DT":"5/7/2013","CONC":".06","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":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"1080623","CASS_NUM":"57992289","SMP_TAKEN_DT":"5/7/2013","CONC":".442","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":"MOBILE BRIDGE OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"877733","CASS_NUM":"57992283","SMP_TAKEN_DT":"5/7/2013","CONC":".329","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 HELPER (SINGLE HEAD)","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"165485","CASS_NUM":"57992369","SMP_TAKEN_DT":"5/7/2013","CONC":".649","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":"2013-05-07"},{"SOURCE_ROW_NUMBER":"67580","CASS_NUM":"57992373","SMP_TAKEN_DT":"5/7/2013","CONC":"0","SMP_TYPE_CD_DESC":"DESIGNATED AREA","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":"2013-05-07"},{"SOURCE_ROW_NUMBER":"440692","CASS_NUM":"51241065","SMP_TAKEN_DT":"4/30/2013","CONC":".083","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-04-30"},{"SOURCE_ROW_NUMBER":"1326490","CASS_NUM":"51241097","SMP_TAKEN_DT":"4/29/2013","CONC":"1.243","SMP_TYPE_CD_DESC":"DESIGNATED OCCUPATION","SMP_USE_CD_DESC":"VOID SAMPLE","VOID_CD_DESC":"MMU NOT IN PRODUCING STATUS","OCC_CD_DESC":"CONTINUOUS MINER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2013-04-29"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":1,"firstDate":"2011-10-11","lastDate":"2011-10-11","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":7,"firstDate":"2011-12-08","lastDate":"2013-07-01","metrics":{"inspectors":14,"recentRows":0,"onSiteHours":163.5,"inspectionHours":266.5,"inspectionSamples":25},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"590456","EVENT_NO":"6424984","INSPECTION_BEGIN_DT":"07/01/2013","INSPECTION_END_DT":"08/14/2013","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17.5","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2013-07-01"},{"SOURCE_ROW_NUMBER":"301987","EVENT_NO":"4467863","INSPECTION_BEGIN_DT":"05/21/2013","INSPECTION_END_DT":"05/21/2013","ACTIVITY_CODE":"E21","ACTIVITY":"Ventilation Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2013-05-21"},{"SOURCE_ROW_NUMBER":"1060956","EVENT_NO":"6427557","INSPECTION_BEGIN_DT":"04/09/2013","INSPECTION_END_DT":"05/08/2013","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"96.5","SUM_TOTAL_ON_SITE_HOURS":"65","sourceDate":"2013-04-09"},{"SOURCE_ROW_NUMBER":"207831","EVENT_NO":"4449503","INSPECTION_BEGIN_DT":"04/09/2013","INSPECTION_END_DT":"04/16/2013","ACTIVITY_CODE":"E19","ACTIVITY":"Electrical Technical Investigation","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14.5","SUM_TOTAL_ON_SITE_HOURS":"10.5","sourceDate":"2013-04-09"},{"SOURCE_ROW_NUMBER":"770752","EVENT_NO":"6427550","INSPECTION_BEGIN_DT":"01/02/2013","INSPECTION_END_DT":"03/13/2013","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"4","SUM_TOTAL_INSP_HOURS":"86.25","SUM_TOTAL_ON_SITE_HOURS":"58","sourceDate":"2013-01-02"},{"SOURCE_ROW_NUMBER":"818202","EVENT_NO":"4240592","INSPECTION_BEGIN_DT":"05/29/2012","INSPECTION_END_DT":"06/28/2012","ACTIVITY_CODE":"E19","ACTIVITY":"Electrical Technical Investigation","NBR_INSPECTOR":"3","SUM_TOTAL_INSP_HOURS":"29.25","SUM_TOTAL_ON_SITE_HOURS":"15","sourceDate":"2012-05-29"},{"SOURCE_ROW_NUMBER":"39919","EVENT_NO":"4468825","INSPECTION_BEGIN_DT":"12/08/2011","INSPECTION_END_DT":"12/08/2011","ACTIVITY_CODE":"E20","ACTIVITY":"Roof Control Technical Investigation","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"10.5","SUM_TOTAL_ON_SITE_HOURS":"4","sourceDate":"2011-12-08"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":10,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2013-Q3":{"hours":1882,"employees":7,"production":2793},"2013-Q2":{"hours":4820,"employees":11,"production":6351},"2013-Q1":{"hours":1792,"employees":7,"production":1002}},"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":{"2013":{"hours":8494,"employees":8,"production":10146}},"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":5,"firstDate":"2013-05-07","lastDate":"2013-05-07","metrics":{"recentRows":0,"doseOver100":1,"actDoseTotal":441,"pelDoseTotal":436},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"109609","EVENT_NO":"6427557","SURVEY_DATE":"05/07/2013","OCCUPATION_CD_DESC":"ROOF BOLTER (SINGLE HEAD)","MACHINE_CD":"30","MANUFACTURER_CD":"039","ACT_DOSE_85":"87","PEL_DOSE_90":"83","SURVEY_TYPE":"I","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"109608","EVENT_NO":"6427557","SURVEY_DATE":"05/07/2013","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"40","MANUFACTURER_CD":"056","ACT_DOSE_85":"86","PEL_DOSE_90":"86","SURVEY_TYPE":"I","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"109607","EVENT_NO":"6427557","SURVEY_DATE":"05/07/2013","OCCUPATION_CD_DESC":"MOBILE BRIDGE OPERATOR","MACHINE_CD":"40","MANUFACTURER_CD":"056","ACT_DOSE_85":"115","PEL_DOSE_90":"115","SURVEY_TYPE":"I","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"109606","EVENT_NO":"6427557","SURVEY_DATE":"05/07/2013","OCCUPATION_CD_DESC":"SCOOP CAR OPERATOR","MACHINE_CD":"38","MANUFACTURER_CD":"098","ACT_DOSE_85":"65","PEL_DOSE_90":"65","SURVEY_TYPE":"I","sourceDate":"2013-05-07"},{"SOURCE_ROW_NUMBER":"109605","EVENT_NO":"6427557","SURVEY_DATE":"05/07/2013","OCCUPATION_CD_DESC":"CONTINUOUS MINER OPERATOR","MACHINE_CD":"06","MANUFACTURER_CD":"056","ACT_DOSE_85":"88","PEL_DOSE_90":"87","SURVEY_TYPE":"I","sourceDate":"2013-05-07"}]},{"id":"msha-quartz-samples","name":"Quartz Samples — Coal","domains":["health","safety"],"products":["quartz exposure trends","occupation context","applicable-rule linkage"],"rowCount":1,"firstDate":"2013-05-07","lastDate":"2013-05-07","metrics":{"recentRows":0,"voidSamples":0,"maxQuartzPct":4.2,"validSamples":1,"quartzPctTotal":4.2},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"9968","CASSETTE_NO":"57992369","SAMPLE_DT":"05/07/2013","QUARTZ_PCT":"04.2","OCC_CODE_DESC":"CONTINUOUS MINER OPERATOR","SAMPLE_TYPE_DESC":"DESIGNATED OCCUPATION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2013-05-07"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":24,"firstDate":"2013-01-02","lastDate":"2013-05-08","metrics":{"ss":6,"amountDue":2713,"contested":0,"amountPaid":2713,"recentRows":0,"section104d":0,"unterminated":1,"proposedPenalty":2713},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1186249","VIOLATION_NO":"8399722","VIOLATION_ISSUE_DT":"05/08/2013","SIG_SUB":"N","PART_SECTION":"75.310(c)(4)(i)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"6","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/08/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-05-08"},{"SOURCE_ROW_NUMBER":"1186248","VIOLATION_NO":"8399721","VIOLATION_ISSUE_DT":"05/08/2013","SIG_SUB":"N","PART_SECTION":"75.310(a)(4)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/08/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-05-08"},{"SOURCE_ROW_NUMBER":"1186247","VIOLATION_NO":"8399713","VIOLATION_ISSUE_DT":"04/18/2013","SIG_SUB":"N","PART_SECTION":"75.1102","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/24/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-18"},{"SOURCE_ROW_NUMBER":"1186246","VIOLATION_NO":"8399712","VIOLATION_ISSUE_DT":"04/18/2013","SIG_SUB":"Y","PART_SECTION":"75.523-2(a)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/24/2013","PROPOSED_PENALTY":"224","AMOUNT_DUE":"224","AMOUNT_PAID":"224","CONTESTED_IND":"N","sourceDate":"2013-04-18"},{"SOURCE_ROW_NUMBER":"1186245","VIOLATION_NO":"8399711","VIOLATION_ISSUE_DT":"04/17/2013","SIG_SUB":"N","PART_SECTION":"75.1702","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/08/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-17"},{"SOURCE_ROW_NUMBER":"1186244","VIOLATION_NO":"8399710","VIOLATION_ISSUE_DT":"04/17/2013","SIG_SUB":"N","PART_SECTION":"75.400-2","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"04/17/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-17"},{"SOURCE_ROW_NUMBER":"1186243","VIOLATION_NO":"8399709","VIOLATION_ISSUE_DT":"04/11/2013","SIG_SUB":"N","PART_SECTION":"77.1605(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/18/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1186242","VIOLATION_NO":"8399708","VIOLATION_ISSUE_DT":"04/11/2013","SIG_SUB":"N","PART_SECTION":"75.1101-17","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"2","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/11/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1186241","VIOLATION_NO":"8399707","VIOLATION_ISSUE_DT":"04/11/2013","SIG_SUB":"N","PART_SECTION":"75.400","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/11/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1186240","VIOLATION_NO":"8399706","VIOLATION_ISSUE_DT":"04/11/2013","SIG_SUB":"N","PART_SECTION":"75.370(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/11/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-11"},{"SOURCE_ROW_NUMBER":"1186239","VIOLATION_NO":"8399705","VIOLATION_ISSUE_DT":"04/10/2013","SIG_SUB":"N","PART_SECTION":"75.1100-1(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"5","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-10"},{"SOURCE_ROW_NUMBER":"1186238","VIOLATION_NO":"8399704","VIOLATION_ISSUE_DT":"04/10/2013","SIG_SUB":"N","PART_SECTION":"75.220(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"5","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/10/2013","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2013-04-10"}]}],"safety":{"href":"/api/v1/mines/1519583/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1519583/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","heading":"Installation of main mine fans.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.310","part":"75","subchapter":"O","subpart":"D","id":"75.310","citation":"30 CFR 75.310","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":2},{"chapter":"I","heading":"Slippage and sequence switches.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1102","part":"75","subchapter":"O","subpart":"L","id":"75.1102","citation":"30 CFR 75.1102","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},{"chapter":"I","heading":"Deenergization of self-propelled electric face equipment; performance requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.523-2","part":"75","subchapter":"O","subpart":"F","id":"75.523-2","citation":"30 CFR 75.523-2","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},{"chapter":"I","heading":"Smoking; prohibition.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1702","part":"75","subchapter":"O","subpart":"R","id":"75.1702","citation":"30 CFR 75.1702","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},{"chapter":"I","heading":"Cleanup program.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400-2","part":"75","subchapter":"O","subpart":"E","id":"75.400-2","citation":"30 CFR 75.400-2","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},{"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":1},{"chapter":"I","heading":"Sealing of dry powder chemical systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1101-17","part":"75","subchapter":"O","subpart":"L","id":"75.1101-17","citation":"30 CFR 75.1101-17","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},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.400","heading":"Accumulation of combustible materials.","id":"75.400","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Combustible Materials and Rock Dusting","text":"Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible materials, shall be cleaned up and not be permitted to accumulate in active workings, or on diesel-powered and electric equipment therein.\n\n[61 FR 55527, Oct. 25, 1996]","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 75.1100-1","heading":"Type and quality of firefighting equipment.","id":"75.1100-1","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1100-1","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"L","subpartHeading":"Subpart L—Fire Protection","text":"Firefighting equipment required under this subpart shall meet the following minimum requirements:\n\n(a) Waterlines: Waterlines shall be capable of delivering 50 gallons of water a minute at a nozzle pressure of 50 pounds per square inch.\n\n(b) Portable water cars: A portable water car shall be of at least 1,000 gallons capacity (500 gallons capacity for anthracite mines) and shall have at least 300 feet of fire hose with nozzles. A portable water car shall be capable of providing a flow through the hose of 50 gallons of water per minute at a nozzle pressure of 50 pounds per square inch.\n\n(c) A portable chemical car shall carry enough chemicals to provide a fire extinguishing capacity equivalent to that of a portable water car.\n\n(d) Portable foam-generating machines or devices: A portable foam-generating machine or device shall have facilities and equipment for supplying the machine with 30 gallons of water per minute at 30 pounds per square inch for a period of 35 minutes.\n\n(e) Portable fire extinguisher: A portable fire extinguisher shall be either (1) a multipurpose dry chemical type containing a nominal weight of 5 pounds of dry powder and enough expellant to apply the powder or (2) a foam-producing type containing at least 2 1/2 gallons of foam-producing liquids and enough expellant to supply the foam. Only fire extinguishers approved by the Underwriters Laboratories, Inc., or Factory Mutual Research Corp., carrying appropriate labels as to type and purpose, shall be used. After March 30, 1971, all new portable fire extinguishers acquired for use in a coal mine shall have a 2A 10 BC or higher rating.\n\n(f)(1) Except as provided in paragraph (f)(2) of this section, the fire hose shall be lined with a material having flame resistant qualities meeting requirements for hose in Bureau of Mines' Schedule 2G. The cover shall be polyester, or other material with flame-spread qualities and mildew resistance equal or superior to polyester. The bursting pressure shall be at least 4 times the water pressure at the valve to the hose inlet with the valve closed; the maximum water pressure in the hose nozzle shall not exceed 100 p.s.i.g.\n\n(2) Fire hose installed for use in underground coal mines prior to December 30, 1970, shall be mildew-proof and have a bursting pressure at least 4 times the water pressure at the valve to the hose inlet with the valve closed, and the maximum water pressure in the hose nozzle with water flowing shall not exceed 100 p.s.i.g.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.220","heading":"Roof control plan.","id":"75.220","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-C/section-75.220","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"C","subpartHeading":"Subpart C—Roof Support","text":"(a)(1) Each mine operator shall develop and follow a roof control plan, approved by the District Manager, that is suitable to the prevailing geological conditions, and the mining system to be used at the mine. Additional measures shall be taken to protect persons if unusual hazards are encountered.\n\n(2) The proposed roof control plan and any revisions to the plan shall be submitted, in writing, to the District Manager. When revisions to a roof control plan are proposed, only the revised pages need to be submitted unless otherwise specified by the District Manager.\n\n(b)(1) The mine operator will be notified in writing of the approval or denial of approval of a proposed roof control plan or proposed revision.\n\n(2) When approval of a proposed plan or revision is denied, the deficiencies of the plan or revision and recommended changes will be specified and the mine operator will be afforded an opportunity to discuss the deficiencies and changes with the District Manager.\n\n(3) Before new support materials, devices or systems other than roof bolts and accessories, are used as the only means of roof support, the District Manager may require that their effectiveness be demonstrated by experimental installations.\n\n(c) No proposed roof control plan or revision to a roof control plan shall be implemented before it is approved.\n\n(d) Before implementing an approved revision to a roof control plan, all persons who are affected by the revision shall be instructed in its provisions.\n\n(e) The approved roof control plan and any revisions shall be available to the miners and representative of miners at the mine.\n\n[53 FR 2375, Jan. 27, 1988; 53 FR 11395, Apr. 6, 1988, as amended at 60 FR 33723, June 29, 1995; 71 FR 16668, Apr. 3, 2006]","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1519583","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}