{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"4609621","name":"CHM 21","status":"NonProducing","status_date":"2025-12-01","mine_type":"Surface","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Pike","nearest_town":"PIKEVILLE","operator_id":"0051979","operator_name":"Contract Highwall Mining, LLC","controller_id":"0042775","controller_name":"F D  Justice II; Greg  Henzman","district":"C05","office":"Pikeville KY Field Office","employees":6,"latitude":37.538889,"longitude":-82.448333},"coverage":{"contributingSources":12,"registeredSources":20,"sourceRows":36},"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":"4609621","name":"CHM 21"},"operator":{"type":"operator","id":"0051979","name":"Contract Highwall Mining, LLC"},"controller":{"type":"controller","id":"0042775","name":"F D  Justice II; Greg  Henzman"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042775","name":"Greg  Henzman  et al"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2004-03-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0042775|2004-03-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2008-12-04","validTo":"2018-05-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|C01825|2008-12-04|2018-05-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0141301","name":"Mohegan Energy Trustees LLC"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2018-05-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0141301|2018-05-16|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0160343","name":"Danny  Dean"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2021-02-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0160343|2021-02-23|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0098205","name":"Onyx Energy, LLC"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2021-12-29","validTo":"2022-10-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0098205|2021-12-29|2022-10-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0141301","name":"Mohegan Energy Trustees LLC"},"object":{"type":"operator","id":"0098205","name":"Onyx Energy, LLC"},"validFrom":"2021-12-29","validTo":"2022-10-30","current":false,"derived":true,"evidenceMineId":"4609621","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0098205|2021-12-29|0141301|2018-05-16|28613"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01825","name":"Richard G  Preservati II"},"object":{"type":"operator","id":"0098205","name":"Onyx Energy, LLC"},"validFrom":"2021-12-29","validTo":"2018-05-15","current":false,"derived":true,"evidenceMineId":"4609621","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0098205|2021-12-29|C01825|2008-12-04|56316"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0175213","name":"WV PLC Repair, Inc."},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2022-10-31","validTo":"2023-11-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0175213|2022-10-31|2023-11-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0160343","name":"Danny  Dean"},"object":{"type":"operator","id":"0175213","name":"WV PLC Repair, Inc."},"validFrom":"2022-10-31","validTo":"2023-11-12","current":false,"derived":true,"evidenceMineId":"4609621","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0175213|2022-10-31|0160343|2021-02-23|33496"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051979","name":"Contract Highwall Mining, LLC"},"object":{"type":"mine","id":"4609621","name":"CHM 21"},"validFrom":"2023-11-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0051979|2023-11-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042775","name":"Greg  Henzman  et al"},"object":{"type":"operator","id":"0051979","name":"Contract Highwall Mining, LLC"},"validFrom":"2023-11-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"4609621","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0051979|2023-11-13|0042775|2004-03-15|4299"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042775","name":"F D  Justice II  et al"},"object":{"type":"operator","id":"0051979","name":"Contract Highwall Mining, LLC"},"validFrom":"2023-11-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"4609621","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4609621|0051979|2023-11-13|0042775|2004-03-15|4300"}}],"coverage":{"historyRecords":5,"edgeCount":12,"intervalAnomalies":1,"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":"2025-12-01","lastDate":"2025-12-01","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":4,"firstDate":"2024-09-13","lastDate":"2026-03-02","metrics":{"ss":0,"delinquent":4,"recentRows":4,"paidPenalty":745,"proposedPenalty":898,"currentAssessment":745},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2984215","VIOLATION_NO":"9879483","ISSUE_DT":"03/02/2026","CFR_STANDARD_CD":"41.12","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-03-02"},{"SOURCE_ROW_NUMBER":"889568","VIOLATION_NO":"9882207","ISSUE_DT":"09/24/2024","CFR_STANDARD_CD":"47.51","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-09-24"},{"SOURCE_ROW_NUMBER":"889567","VIOLATION_NO":"9882201","ISSUE_DT":"09/13/2024","CFR_STANDARD_CD":"77.502","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-09-13"},{"SOURCE_ROW_NUMBER":"889566","VIOLATION_NO":"8283500","ISSUE_DT":"09/13/2024","CFR_STANDARD_CD":"77.1000","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"453.00","CURRENT_ASSESSMENT_AMT":"300.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-09-13"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":1,"firstDate":"2025-03-25","lastDate":"2025-03-25","metrics":{"appeals":0,"decisions":1,"recentRows":1,"decisionPenalty":300,"originalPenalty":453},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"219174","VIOLATION_NO":"8283500","DOCKET_NO":"KENT 2025-0039","DECISION_DT":"03/25/2025","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"453.00","DECISION_PENALTY_AMT":"300.00","JUDGE_FIRST_NAME":"John","JUDGE_LAST_NAME":"Lewis","sourceDate":"2025-03-25"}]},{"id":"msha-coal-dust-samples","name":"Coal Dust Samples","domains":["health","safety"],"products":["respirable dust trends","CPDM coverage","void patterns","occupation exposure"],"rowCount":2,"firstDate":"2023-06-06","lastDate":"2023-06-06","metrics":{"recentRows":2,"cpdmSamples":0,"voidSamples":0,"validSamples":2,"maxConcentration":0.169,"concentrationTotal":0.26},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1499061","CASS_NUM":"58224559","SMP_TAKEN_DT":"6/6/2023","CONC":".169","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"AUGER HELPER","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2023-06-06"},{"SOURCE_ROW_NUMBER":"177888","CASS_NUM":"58224548","SMP_TAKEN_DT":"6/6/2023","CONC":".091","SMP_TYPE_CD_DESC":"NONDESIGNATED WORK POSITION","SMP_USE_CD_DESC":"NOT USED ON INSPECTOR SAMPLES; NOT FOUND ON OPERATOR SAMPLE","VOID_CD_DESC":"SAMPLE NOT VOIDED","OCC_CD_DESC":"AUGER OPERATOR","DEVICE_TYPE_CD":"CMDPSU","sourceDate":"2023-06-06"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":2,"firstDate":"2024-11-18","lastDate":"2024-11-18","metrics":{"linkedIssuances":2},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":1,"firstDate":"2024-09-13","lastDate":"2024-09-13","metrics":{"decisions":1,"ssChanged":0,"recentRows":1,"decisionPenalty":300,"proposedPenalty":453},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"336918","CITATION_NO":"8283500","CITATION_ISSUE_DT":"09/13/2024","DOCKET_NO":"KENT 2025-0039","DECISION_DT":"03/25/2025","CFR_STANDARD_CODE":"77.1000","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"453.00","DECISION_PENALTY_AMT":"300.00","sourceDate":"2024-09-13"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":5,"firstDate":"2021-12-29","lastDate":"2023-11-13","metrics":{"recentRows":5,"currentOperatorTenures":2,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":9,"firstDate":"2023-02-22","lastDate":"2026-09-11","metrics":{"inspectors":14,"recentRows":9,"onSiteHours":83.75,"inspectionHours":175.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"324791","EVENT_NO":"F038394","INSPECTION_BEGIN_DT":"09/11/2026","INSPECTION_END_DT":"09/14/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.5","SUM_TOTAL_ON_SITE_HOURS":"2.5","sourceDate":"2026-09-11"},{"SOURCE_ROW_NUMBER":"823548","EVENT_NO":"F017C91","INSPECTION_BEGIN_DT":"03/02/2026","INSPECTION_END_DT":"03/04/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"3.5","sourceDate":"2026-03-02"},{"SOURCE_ROW_NUMBER":"711383","EVENT_NO":"F01626C","INSPECTION_BEGIN_DT":"07/21/2025","INSPECTION_END_DT":"07/21/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"3.5","SUM_TOTAL_ON_SITE_HOURS":"1","sourceDate":"2025-07-21"},{"SOURCE_ROW_NUMBER":"657814","EVENT_NO":"4135305","INSPECTION_BEGIN_DT":"02/18/2025","INSPECTION_END_DT":"02/18/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"2","sourceDate":"2025-02-18"},{"SOURCE_ROW_NUMBER":"572687","EVENT_NO":"F00DCFD","INSPECTION_BEGIN_DT":"09/24/2024","INSPECTION_END_DT":"09/24/2024","ACTIVITY_CODE":"E17","ACTIVITY":"Special Emphasis Programs","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"1","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2024-09-24"},{"SOURCE_ROW_NUMBER":"458609","EVENT_NO":"4135435","INSPECTION_BEGIN_DT":"08/12/2024","INSPECTION_END_DT":"09/26/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"34.75","SUM_TOTAL_ON_SITE_HOURS":"21.25","sourceDate":"2024-08-12"},{"SOURCE_ROW_NUMBER":"200926","EVENT_NO":"4129586","INSPECTION_BEGIN_DT":"11/01/2023","INSPECTION_END_DT":"01/02/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.25","SUM_TOTAL_ON_SITE_HOURS":".5","sourceDate":"2023-11-01"},{"SOURCE_ROW_NUMBER":"723242","EVENT_NO":"4132921","INSPECTION_BEGIN_DT":"05/08/2023","INSPECTION_END_DT":"06/23/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"42.75","SUM_TOTAL_ON_SITE_HOURS":"24.5","sourceDate":"2023-05-08"},{"SOURCE_ROW_NUMBER":"180644","EVENT_NO":"4408671","INSPECTION_BEGIN_DT":"02/22/2023","INSPECTION_END_DT":"03/24/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"5","SUM_TOTAL_INSP_HOURS":"64","SUM_TOTAL_ON_SITE_HOURS":"28","sourceDate":"2023-02-22"}]},{"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":{"2023":{"hours":6387,"employees":4,"production":64449},"2024":{"hours":4702,"employees":3,"production":4911},"2025":{"hours":2625,"employees":3,"production":3630},"2026":{"hours":1924,"employees":2,"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-noise-samples","name":"Noise Samples","domains":["health","safety","equipment"],"products":["hearing exposure","machine and manufacturer patterns","occupation coverage"],"rowCount":2,"firstDate":"2023-06-06","lastDate":"2023-06-06","metrics":{"recentRows":2,"doseOver100":0,"actDoseTotal":29,"pelDoseTotal":13},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"271993","EVENT_NO":"4132921","SURVEY_DATE":"06/06/2023","OCCUPATION_CD_DESC":"AUGER OPERATOR","MACHINE_CD":"02","ACT_DOSE_85":"19","PEL_DOSE_90":"9","SURVEY_TYPE":"I","sourceDate":"2023-06-06"},{"SOURCE_ROW_NUMBER":"271992","EVENT_NO":"4132921","SURVEY_DATE":"06/06/2023","OCCUPATION_CD_DESC":"AUGER HELPER","MACHINE_CD":"02","ACT_DOSE_85":"10","PEL_DOSE_90":"4","SURVEY_TYPE":"I","sourceDate":"2023-06-06"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":4,"firstDate":"2024-09-13","lastDate":"2026-03-02","metrics":{"ss":0,"amountDue":745,"contested":0,"amountPaid":745,"recentRows":4,"section104d":0,"unterminated":0,"proposedPenalty":898},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2997652","VIOLATION_NO":"9879483","VIOLATION_ISSUE_DT":"03/02/2026","SIG_SUB":"N","PART_SECTION":"41.12","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"NoLikelihood","INJ_ILLNESS":"NoLostDays","NO_AFFECTED":"0","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"03/04/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-03-02"},{"SOURCE_ROW_NUMBER":"2997655","VIOLATION_NO":"9882207","VIOLATION_ISSUE_DT":"09/24/2024","SIG_SUB":"N","PART_SECTION":"47.51","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/25/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-09-24"},{"SOURCE_ROW_NUMBER":"2997654","VIOLATION_NO":"9882201","VIOLATION_ISSUE_DT":"09/13/2024","SIG_SUB":"N","PART_SECTION":"77.502","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/24/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-09-13"},{"SOURCE_ROW_NUMBER":"2997653","VIOLATION_NO":"8283500","VIOLATION_ISSUE_DT":"09/13/2024","SIG_SUB":"N","PART_SECTION":"77.1000","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"HighNegligence","TERMINATION_DT":"09/25/2024","PROPOSED_PENALTY":"453","AMOUNT_DUE":"300","AMOUNT_PAID":"300","CONTESTED_IND":"N","sourceDate":"2024-09-13"}]}],"safety":{"href":"/api/v1/mines/4609621/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/4609621/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":{"averageEmployees":3,"companyType":"Independent Producer Operator","components":[{"averageEmployees":3,"laborHours":4702,"mineType":"Surface","productionTons":4911}],"county":"Pike","laborHours":4702,"mineName":"Chm 21","mineType":"Surface","mshaId":"4609621","operatingAddress":"P.O. Box 249, Stanville, KY 41659","operatingCompany":"Contract Highwall Mining, Llc","operationType":"Mine only","productionTons":4911,"reportedRows":1,"sourceUrl":"https://www.eia.gov/coal/data/public/xls/coalpublic2024.xlsx","state":"Kentucky (East)","status":"Active, men working, not producing","supplyRegion":"Appalachia Central","union":"","year":2024},"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":"Changes; notification by operator.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-B/section-41.12","part":"41","subchapter":"G","subpart":"B","id":"41.12","citation":"30 CFR 41.12","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER G—FILING AND OTHER ADMINISTRATIVE REQUIREMENTS","partHeading":"PART 41—NOTIFICATION OF LEGAL IDENTITY","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Requirement for an MSDS.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-47/subpart-F/section-47.51","part":"47","subchapter":"H","subpart":"F","id":"47.51","citation":"30 CFR 47.51","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER H—EDUCATION AND TRAINING","partHeading":"PART 47—HAZARD COMMUNICATION (HazCom)","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.502","heading":"Electric equipment; examination, testing, and maintenance.","id":"77.502","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-F/section-77.502","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":"Electric equipment shall be frequently examined, tested, and properly maintained by a qualified person to assure safe operating conditions. When a potentially dangerous condition is found on electric equipment, such equipment shall be removed from service until such condition is corrected. A record of such examinations shall be kept.","occurrenceCount":1},{"chapter":"I","heading":"Highwalls, pits and spoil banks; plans.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-K/section-77.1000","part":"77","subchapter":"O","subpart":"K","id":"77.1000","citation":"30 CFR 77.1000","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4609621","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}