{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-18T09:31:49.615Z","identity":{"mine_id":"4003300","name":"Clark Quarry","status":"Abandoned","status_date":"2012-02-13","mine_type":"Surface","coal_metal":"M","commodity":"Dimension Stone NEC","state":"TN","county":"Bledsoe","nearest_town":"Pikeville","operator_id":"0076344","operator_name":"Pat Dunegan Company","controller_id":"0064091","controller_name":"Harry P  Dunegan","district":"C07","office":"Knoxville TN Field Office","employees":0,"latitude":35.558333,"longitude":-85.126944},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":48},"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":"2026-10-18T09:31:49.615908+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":"4003300","name":"Clark Quarry"},"operator":{"type":"operator","id":"0076344","name":"Pat Dunegan Company"},"controller":{"type":"controller","id":"0064091","name":"Harry P  Dunegan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0064091","name":"Harry P  Dunegan"},"object":{"type":"mine","id":"4003300","name":"Clark Quarry"},"validFrom":"2006-10-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4003300|0064091|2006-10-24|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0076344","name":"Pat Dunegan Company"},"object":{"type":"mine","id":"4003300","name":"Clark Quarry"},"validFrom":"2007-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4003300|0076344|2007-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0064091","name":"Harry P  Dunegan"},"object":{"type":"operator","id":"0076344","name":"Pat Dunegan Company"},"validFrom":"2007-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4003300","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4003300|0076344|2007-07-26|0064091|2006-10-24|8765"}}],"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":"2012-02-13","lastDate":"2012-02-13","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":9,"firstDate":"2007-08-22","lastDate":"2010-01-20","metrics":{"ss":3,"delinquent":9,"recentRows":0,"paidPenalty":100,"proposedPenalty":2457,"currentAssessment":2457},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2085477","VIOLATION_NO":"6515251","ISSUE_DT":"01/20/2010","CFR_STANDARD_CD":"56.20003(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"243.00","CURRENT_ASSESSMENT_AMT":"243.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-01-20"},{"SOURCE_ROW_NUMBER":"2085476","VIOLATION_NO":"6515250","ISSUE_DT":"01/20/2010","CFR_STANDARD_CD":"56.9300(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"807.00","CURRENT_ASSESSMENT_AMT":"807.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2010-01-20"},{"SOURCE_ROW_NUMBER":"2086065","VIOLATION_NO":"6516981","ISSUE_DT":"08/13/2009","CFR_STANDARD_CD":"62.120","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"2086064","VIOLATION_NO":"6516980","ISSUE_DT":"08/13/2009","CFR_STANDARD_CD":"62.120","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"2086063","VIOLATION_NO":"6516979","ISSUE_DT":"08/12/2009","CFR_STANDARD_CD":"56.4104(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":"2009-08-12"},{"SOURCE_ROW_NUMBER":"285616","VIOLATION_NO":"7767761","ISSUE_DT":"02/12/2009","CFR_STANDARD_CD":"50.30(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":"2009-02-12"},{"SOURCE_ROW_NUMBER":"285615","VIOLATION_NO":"7767757","ISSUE_DT":"02/10/2009","CFR_STANDARD_CD":"56.4402","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"100.00","CURRENT_ASSESSMENT_AMT":"100.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2009-02-10"},{"SOURCE_ROW_NUMBER":"283736","VIOLATION_NO":"6124608","ISSUE_DT":"01/03/2008","CFR_STANDARD_CD":"56.9300(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"807.00","CURRENT_ASSESSMENT_AMT":"807.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2008-01-03"},{"SOURCE_ROW_NUMBER":"283623","VIOLATION_NO":"6123912","ISSUE_DT":"08/22/2007","CFR_STANDARD_CD":"56.9300(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":"2007-08-22"}]},{"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":"2007-07-26","lastDate":"2007-07-26","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":5,"firstDate":"2007-08-22","lastDate":"2010-01-20","metrics":{"inspectors":5,"recentRows":0,"onSiteHours":50.5,"inspectionHours":79.5,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"744802","EVENT_NO":"6523193","INSPECTION_BEGIN_DT":"01/20/2010","INSPECTION_END_DT":"01/20/2010","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"6.5","SUM_TOTAL_ON_SITE_HOURS":"5.25","sourceDate":"2010-01-20"},{"SOURCE_ROW_NUMBER":"615117","EVENT_NO":"6523308","INSPECTION_BEGIN_DT":"08/12/2009","INSPECTION_END_DT":"09/04/2009","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"27.25","SUM_TOTAL_ON_SITE_HOURS":"17.5","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"403242","EVENT_NO":"0937866","INSPECTION_BEGIN_DT":"02/09/2009","INSPECTION_END_DT":"02/12/2009","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13.75","SUM_TOTAL_ON_SITE_HOURS":"8.5","sourceDate":"2009-02-09"},{"SOURCE_ROW_NUMBER":"530808","EVENT_NO":"0936174","INSPECTION_BEGIN_DT":"01/03/2008","INSPECTION_END_DT":"01/04/2008","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"10.25","sourceDate":"2008-01-03"},{"SOURCE_ROW_NUMBER":"1065578","EVENT_NO":"0936079","INSPECTION_BEGIN_DT":"08/22/2007","INSPECTION_END_DT":"08/24/2007","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"16","SUM_TOTAL_ON_SITE_HOURS":"9","sourceDate":"2007-08-22"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":15,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2011-Q4":{"hours":0,"employees":0,"production":0},"2011-Q3":{"hours":0,"employees":0,"production":0},"2010-Q3":{"hours":0,"employees":0,"production":0},"2010-Q2":{"hours":0,"employees":0,"production":0},"2010-Q1":{"hours":72,"employees":3,"production":0},"2009-Q4":{"hours":0,"employees":0,"production":0},"2009-Q3":{"hours":600,"employees":3,"production":0},"2009-Q2":{"hours":720,"employees":3,"production":0},"2009-Q1":{"hours":960,"employees":3,"production":0},"2008-Q4":{"hours":502,"employees":3,"production":0},"2008-Q3":{"hours":804,"employees":4,"production":0},"2008-Q2":{"hours":1022,"employees":3,"production":0}},"recentRecords":[]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":4,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2007":{"hours":1170,"employees":4,"production":0},"2008":{"hours":2538,"employees":3,"production":0},"2009":{"hours":2280,"employees":3,"production":0},"2010":{"hours":72,"employees":3,"production":0}},"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-personal-health-samples","name":"Metal and Nonmetal Personal Health Samples","domains":["health","safety"],"products":["personal exposure trend","occupation patterns","analyte coverage"],"rowCount":3,"firstDate":"2009-08-13","lastDate":"2009-08-13","metrics":{"recentRows":0,"actionTaken":3,"maxExposureRatio":0.23,"overExposureLimit":0,"exposureRatioTotal":0.23},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"106438","EVENT_NO":"6523308","SAMPLE_NO":"000000200907864200","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Stone Polisher/Cutter","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"106437","EVENT_NO":"6523308","SAMPLE_NO":"000000200907864100","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.13","EXPOSURE_LIMIT":"0000.56","C_OVER_E":"00.23","JOB_CD_DESC":"Stone Polisher/Cutter","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"103502","EVENT_NO":"6523308","SAMPLE_NO":"000000200907864300","SAMPLE_DATE":"08/13/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Forklift Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-08-13"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":9,"firstDate":"2007-08-22","lastDate":"2010-01-20","metrics":{"ss":3,"amountDue":2457,"contested":0,"amountPaid":100,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":2457},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2083965","VIOLATION_NO":"6515251","VIOLATION_ISSUE_DT":"01/20/2010","SIG_SUB":"Y","PART_SECTION":"56.20003(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"01/20/2010","PROPOSED_PENALTY":"243","AMOUNT_DUE":"243","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-01-20"},{"SOURCE_ROW_NUMBER":"2083964","VIOLATION_NO":"6515250","VIOLATION_ISSUE_DT":"01/20/2010","SIG_SUB":"Y","PART_SECTION":"56.9300(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"01/20/2010","PROPOSED_PENALTY":"807","AMOUNT_DUE":"807","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2010-01-20"},{"SOURCE_ROW_NUMBER":"2083970","VIOLATION_NO":"6516981","VIOLATION_ISSUE_DT":"08/13/2009","SIG_SUB":"N","PART_SECTION":"62.120","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/08/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"2083969","VIOLATION_NO":"6516980","VIOLATION_ISSUE_DT":"08/13/2009","SIG_SUB":"N","PART_SECTION":"62.120","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/08/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-08-13"},{"SOURCE_ROW_NUMBER":"2083968","VIOLATION_NO":"6516979","VIOLATION_ISSUE_DT":"08/12/2009","SIG_SUB":"N","PART_SECTION":"56.4104(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/12/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-08-12"},{"SOURCE_ROW_NUMBER":"2083967","VIOLATION_NO":"7767761","VIOLATION_ISSUE_DT":"02/12/2009","SIG_SUB":"N","PART_SECTION":"50.30(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"02/12/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-02-12"},{"SOURCE_ROW_NUMBER":"2083966","VIOLATION_NO":"7767757","VIOLATION_ISSUE_DT":"02/10/2009","SIG_SUB":"N","PART_SECTION":"56.4402","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"02/10/2009","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2009-02-10"},{"SOURCE_ROW_NUMBER":"2083963","VIOLATION_NO":"6124608","VIOLATION_ISSUE_DT":"01/03/2008","SIG_SUB":"Y","PART_SECTION":"56.9300(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"01/03/2008","PROPOSED_PENALTY":"807","AMOUNT_DUE":"807","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2008-01-03"},{"SOURCE_ROW_NUMBER":"2083971","VIOLATION_NO":"6123912","VIOLATION_ISSUE_DT":"08/22/2007","SIG_SUB":"N","PART_SECTION":"56.9300(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"08/22/2007","PROPOSED_PENALTY":"100","AMOUNT_DUE":"100","AMOUNT_PAID":"100","CONTESTED_IND":"N","sourceDate":"2007-08-22"}]}],"safety":{"href":"/api/v1/mines/4003300/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4003300/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":"Housekeeping.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20003","part":"56","subchapter":"K","subpart":"S","id":"56.20003","citation":"30 CFR 56.20003","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Berms or guardrails.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300","part":"56","subchapter":"K","subpart":"H","id":"56.9300","citation":"30 CFR 56.9300","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":3},{"chapter":"I","heading":"Action level.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.120","part":"62","subchapter":"M","subpart":"","id":"62.120","citation":"30 CFR 62.120","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER M—UNIFORM MINE HEALTH REGULATIONS","partHeading":"PART 62—OCCUPATIONAL NOISE EXPOSURE","subpartHeading":"","text":null,"occurrenceCount":2},{"chapter":"I","heading":"Combustible waste.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4104","part":"56","subchapter":"K","subpart":"C","id":"56.4104","citation":"30 CFR 56.4104","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30","part":"50","subchapter":"I","subpart":"D","id":"50.30","citation":"30 CFR 50.30","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER I—ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND PRODUCTION IN MINES","partHeading":"PART 50—NOTIFICATION, INVESTIGATION, REPORTS AND RECORDS OF ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Safety can use.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4402","part":"56","subchapter":"K","subpart":"C","id":"56.4402","citation":"30 CFR 56.4402","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH","partHeading":"PART 56—SAFETY AND HEALTH STANDARDS—SURFACE METAL AND NONMETAL MINES","subpartHeading":"","text":null,"occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4003300","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}