{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"2102939","name":"El Jay Cone","status":"Abandoned","status_date":"2007-10-17","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"MN","county":"Wright","nearest_town":"Buffalo","operator_id":"L31313","operator_name":"Buffalo Bituminous Inc.","controller_id":"M09717","controller_name":"MDU Resources Group Inc","district":"M4","office":"Duluth District","employees":0,"latitude":null,"longitude":null},"coverage":{"contributingSources":9,"registeredSources":20,"sourceRows":92},"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":"2102939","name":"El Jay Cone"},"operator":{"type":"operator","id":"L31313","name":"Buffalo Bituminous Inc."},"controller":{"type":"controller","id":"M09717","name":"MDU Resources Group Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L31313","name":"Buffalo Bituminous Inc"},"object":{"type":"mine","id":"2102939","name":"El Jay Cone"},"validFrom":"1985-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102939|L31313|1985-05-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M31313","name":"Hicks Darrell E"},"object":{"type":"mine","id":"2102939","name":"El Jay Cone"},"validFrom":"1985-05-01","validTo":"2003-10-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102939|M31313|1985-05-01|2003-10-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M31313","name":"Hicks Darrell E"},"object":{"type":"operator","id":"L31313","name":"Buffalo Bituminous Inc"},"validFrom":"1985-05-01","validTo":"2003-10-07","current":false,"derived":true,"evidenceMineId":"2102939","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102939|L31313|1985-05-01|M31313|1985-05-01|159572"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09717","name":"MDU Resources Group Inc"},"object":{"type":"mine","id":"2102939","name":"El Jay Cone"},"validFrom":"2003-10-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102939|M09717|2003-10-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09717","name":"MDU Resources Group Inc"},"object":{"type":"operator","id":"L31313","name":"Buffalo Bituminous Inc"},"validFrom":"2003-10-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"2102939","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2102939|L31313|1985-05-01|M09717|2003-10-08|147296"}}],"coverage":{"historyRecords":2,"edgeCount":5,"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":"2007-10-17","lastDate":"2007-10-17","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":7,"firstDate":"2001-10-11","lastDate":"2005-05-03","metrics":{"ss":2,"delinquent":7,"recentRows":0,"paidPenalty":486,"proposedPenalty":486,"currentAssessment":486},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"349560","VIOLATION_NO":"6175307","ISSUE_DT":"05/03/2005","CFR_STANDARD_CD":"56.11001","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"349559","VIOLATION_NO":"6175306","ISSUE_DT":"05/03/2005","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"349558","VIOLATION_NO":"6175305","ISSUE_DT":"05/03/2005","CFR_STANDARD_CD":"56.14100(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"331963","VIOLATION_NO":"6164401","ISSUE_DT":"10/07/2003","CFR_STANDARD_CD":"56.20011","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"60.00","CURRENT_ASSESSMENT_AMT":"60.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2003-10-07"},{"SOURCE_ROW_NUMBER":"321598","VIOLATION_NO":"6136148","ISSUE_DT":"10/30/2002","CFR_STANDARD_CD":"56.9300(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"122.00","CURRENT_ASSESSMENT_AMT":"122.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2002-10-30"},{"SOURCE_ROW_NUMBER":"83007","VIOLATION_NO":"6134015","ISSUE_DT":"10/11/2001","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"69.00","CURRENT_ASSESSMENT_AMT":"69.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-10-11"},{"SOURCE_ROW_NUMBER":"83006","VIOLATION_NO":"6134014","ISSUE_DT":"10/11/2001","CFR_STANDARD_CD":"56.12005","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"55.00","CURRENT_ASSESSMENT_AMT":"55.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2001-10-11"}]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":2,"firstDate":"1985-05-01","lastDate":"1985-05-01","metrics":{"recentRows":0,"currentOperatorTenures":2,"completedOperatorTenures":0},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":6,"firstDate":"2001-10-11","lastDate":"2005-10-17","metrics":{"inspectors":7,"recentRows":0,"onSiteHours":45.75,"inspectionHours":77.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"447368","EVENT_NO":"0990809","INSPECTION_BEGIN_DT":"10/17/2005","INSPECTION_END_DT":"10/19/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"18.75","SUM_TOTAL_ON_SITE_HOURS":"11.5","sourceDate":"2005-10-17"},{"SOURCE_ROW_NUMBER":"1034808","EVENT_NO":"0990228","INSPECTION_BEGIN_DT":"05/03/2005","INSPECTION_END_DT":"05/03/2005","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"2","SUM_TOTAL_INSP_HOURS":"14.5","SUM_TOTAL_ON_SITE_HOURS":"9.25","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"1071820","EVENT_NO":"0977889","INSPECTION_BEGIN_DT":"01/08/2004","INSPECTION_END_DT":"01/08/2004","ACTIVITY_CODE":"16","ACTIVITY":"PART 50 AUDIT","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2004-01-08"},{"SOURCE_ROW_NUMBER":"226964","EVENT_NO":"0977861","INSPECTION_BEGIN_DT":"10/07/2003","INSPECTION_END_DT":"10/08/2003","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2003-10-07"},{"SOURCE_ROW_NUMBER":"882502","EVENT_NO":"0969133","INSPECTION_BEGIN_DT":"10/30/2002","INSPECTION_END_DT":"10/31/2002","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2002-10-30"},{"SOURCE_ROW_NUMBER":"362926","EVENT_NO":"0715589","INSPECTION_BEGIN_DT":"10/11/2001","INSPECTION_END_DT":"10/11/2001","ACTIVITY_CODE":"01","ACTIVITY":"REGULAR INSPECTION","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2001-10-11"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":55,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2007-Q4":{"hours":0,"employees":0,"production":0},"2007-Q3":{"hours":0,"employees":0,"production":0},"2007-Q2":{"hours":0,"employees":0,"production":0},"2006-Q3":{"hours":1327,"employees":3,"production":0},"2006-Q2":{"hours":1131,"employees":3,"production":0},"2006-Q1":{"hours":0,"employees":0,"production":0},"2005-Q4":{"hours":1162,"employees":3,"production":0},"2005-Q3":{"hours":1495,"employees":3,"production":0},"2005-Q2":{"hours":985,"employees":3,"production":0},"2005-Q1":{"hours":0,"employees":0,"production":0},"2004-Q4":{"hours":1197,"employees":2,"production":0},"2004-Q3":{"hours":1374,"employees":2,"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":11,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2000":{"hours":556,"employees":3,"production":0},"2001":{"hours":3735,"employees":3,"production":0},"2002":{"hours":3240,"employees":2,"production":0},"2003":{"hours":3542,"employees":2,"production":0},"2004":{"hours":3635,"employees":2,"production":0},"2005":{"hours":3642,"employees":3,"production":0},"2006":{"hours":2458,"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":2,"firstDate":"2005-10-19","lastDate":"2005-10-19","metrics":{"recentRows":0,"actionTaken":2,"maxExposureRatio":0.95,"overExposureLimit":0,"exposureRatioTotal":1.32},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"65153","EVENT_NO":"0990809","SAMPLE_NO":"000000200509394400","SAMPLE_DATE":"10/19/2005","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.78","EXPOSURE_LIMIT":"0000.82","C_OVER_E":"00.95","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2005-10-19"},{"SOURCE_ROW_NUMBER":"65152","EVENT_NO":"0990809","SAMPLE_NO":"000000200509394300","SAMPLE_DATE":"10/19/2005","CONTAMINANT_DESC":"Quartz, respirable, >1% Qtz","CONCENTRATION":"0000.55","EXPOSURE_LIMIT":"0001.50","C_OVER_E":"00.37","JOB_CD_DESC":"Crusher Oper/Worker","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2005-10-19"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":7,"firstDate":"2001-10-11","lastDate":"2005-05-03","metrics":{"ss":2,"amountDue":486,"contested":0,"amountPaid":486,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":486},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"1359966","VIOLATION_NO":"6175307","VIOLATION_ISSUE_DT":"05/03/2005","SIG_SUB":"N","PART_SECTION":"56.11001","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/03/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"1359965","VIOLATION_NO":"6175306","VIOLATION_ISSUE_DT":"05/03/2005","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/03/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"1359964","VIOLATION_NO":"6175305","VIOLATION_ISSUE_DT":"05/03/2005","SIG_SUB":"N","PART_SECTION":"56.14100(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"05/03/2005","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2005-05-03"},{"SOURCE_ROW_NUMBER":"1359967","VIOLATION_NO":"6164401","VIOLATION_ISSUE_DT":"10/07/2003","SIG_SUB":"N","PART_SECTION":"56.20011","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/08/2003","PROPOSED_PENALTY":"60","AMOUNT_DUE":"60","AMOUNT_PAID":"60","CONTESTED_IND":"N","sourceDate":"2003-10-07"},{"SOURCE_ROW_NUMBER":"1359970","VIOLATION_NO":"6136148","VIOLATION_ISSUE_DT":"10/30/2002","SIG_SUB":"Y","PART_SECTION":"56.9300(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/31/2002","PROPOSED_PENALTY":"122","AMOUNT_DUE":"122","AMOUNT_PAID":"122","CONTESTED_IND":"N","sourceDate":"2002-10-30"},{"SOURCE_ROW_NUMBER":"1359969","VIOLATION_NO":"6134015","VIOLATION_ISSUE_DT":"10/11/2001","SIG_SUB":"Y","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"10/11/2001","PROPOSED_PENALTY":"69","AMOUNT_DUE":"69","AMOUNT_PAID":"69","CONTESTED_IND":"N","sourceDate":"2001-10-11"},{"SOURCE_ROW_NUMBER":"1359968","VIOLATION_NO":"6134014","VIOLATION_ISSUE_DT":"10/11/2001","SIG_SUB":"N","PART_SECTION":"56.12005","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"10/11/2001","PROPOSED_PENALTY":"55","AMOUNT_DUE":"55","AMOUNT_PAID":"55","CONTESTED_IND":"N","sourceDate":"2001-10-11"}]}],"safety":{"href":"/api/v1/mines/2102939/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/2102939/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":"Safe access.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-J/section-56.11001","part":"56","subchapter":"K","subpart":"J","id":"56.11001","citation":"30 CFR 56.11001","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":"Electrical conductors.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12004","part":"56","subchapter":"K","subpart":"K","id":"56.12004","citation":"30 CFR 56.12004","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":"Safety defects; examination, correction and records.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100","part":"56","subchapter":"K","subpart":"M","id":"56.14100","citation":"30 CFR 56.14100","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":"Barricades and warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20011","part":"56","subchapter":"K","subpart":"S","id":"56.20011","citation":"30 CFR 56.20011","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":1},{"chapter":"I","heading":"Moving machine parts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107","part":"56","subchapter":"K","subpart":"M","id":"56.14107","citation":"30 CFR 56.14107","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":"Protection of power conductors from mobile equipment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12005","part":"56","subchapter":"K","subpart":"K","id":"56.12005","citation":"30 CFR 56.12005","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":"2102939","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}