{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"0203122","name":"Hackberry","status":"Active","status_date":"2011-11-21","mine_type":"Surface","coal_metal":"M","commodity":"Construction Sand and Gravel","state":"AZ","county":"Mohave","nearest_town":"Kingman","operator_id":"L13215","operator_name":"Campbell Redi-Mix Inc","controller_id":"M10095","controller_name":"D L  Campbell Sr","district":"M7","office":"Henderson NV Field Office","employees":2,"latitude":35.373056,"longitude":-113.728611},"coverage":{"contributingSources":13,"registeredSources":20,"sourceRows":552},"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":"0203122","name":"Hackberry"},"operator":{"type":"operator","id":"L13215","name":"Campbell Redi-Mix Inc"},"controller":{"type":"controller","id":"M10095","name":"D L  Campbell Sr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10095","name":"D L  Campbell Sr"},"object":{"type":"mine","id":"0203122","name":"Hackberry"},"validFrom":"1993-09-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203122|M10095|1993-09-28|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13215","name":"Campbell Redi-Mix Inc"},"object":{"type":"mine","id":"0203122","name":"Hackberry"},"validFrom":"2006-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203122|L13215|2006-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10095","name":"D L  Campbell Sr"},"object":{"type":"operator","id":"L13215","name":"Campbell Redi-Mix Inc"},"validFrom":"2006-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0203122","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0203122|L13215|2006-05-01|M10095|1993-09-28|148376"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"sources":[{"id":"msha-accidents","name":"Accident, Injuries, and Illnesses","domains":["safety","contractors"],"products":["incident trends","severity rates","equipment patterns","peer denominators"],"rowCount":1,"firstDate":"2025-03-26","lastDate":"2025-03-26","metrics":{"daysLost":0,"injuries":1,"fatalities":0,"recentRows":1,"restrictedDays":67,"contractorRecords":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"198053","DOCUMENT_NO":"220250860009","ACCIDENT_DT":"03/26/2025","DEGREE_INJURY":"DAYS RESTRICTED ACTIVITY ONLY","CLASSIFICATION":"SLIP OR FALL OF PERSON","ACCIDENT_TYPE":"Fall down stairs","OCCUPATION":"Master mechanic, Foreman, Supervisor","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was walking out of the office and missed the bottom step on the stairs and had pain in their left calf. They heard a pop sound and had pain while walking. Employee is going to the doctor to get checked out.","sourceDate":"2025-03-26"}]},{"id":"msha-addresses","name":"Addresses of Record","domains":["identity","logistics"],"products":["entity resolution","address history","facility geocoding"],"rowCount":1,"firstDate":"2011-11-21","lastDate":"2011-11-21","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":117,"firstDate":"2007-03-19","lastDate":"2026-04-28","metrics":{"ss":16,"delinquent":110,"recentRows":22,"paidPenalty":21135,"proposedPenalty":32952,"currentAssessment":24338},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"3002782","VIOLATION_NO":"5103921","ISSUE_DT":"04/28/2026","CFR_STANDARD_CD":"56.12040","SIG_SUB_IND":"Y","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"2936.00","CURRENT_ASSESSMENT_AMT":"2936.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-04-28"},{"SOURCE_ROW_NUMBER":"3002781","VIOLATION_NO":"5103920","ISSUE_DT":"04/28/2026","CFR_STANDARD_CD":"56.14112(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"267.00","CURRENT_ASSESSMENT_AMT":"267.00","ASSESS_CASE_STATUS_CD":"Received","sourceDate":"2026-04-28"},{"SOURCE_ROW_NUMBER":"3002689","VIOLATION_NO":"5103052","ISSUE_DT":"01/13/2026","CFR_STANDARD_CD":"56.12028","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-01-13"},{"SOURCE_ROW_NUMBER":"3002688","VIOLATION_NO":"5103051","ISSUE_DT":"01/13/2026","CFR_STANDARD_CD":"56.14107(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2026-01-13"},{"SOURCE_ROW_NUMBER":"2950020","VIOLATION_NO":"9680059","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.4130(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2950019","VIOLATION_NO":"9680058","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.4104(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2950018","VIOLATION_NO":"9680057","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.12019","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2950017","VIOLATION_NO":"9680056","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.16006","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2950016","VIOLATION_NO":"9680055","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.4101","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2950015","VIOLATION_NO":"9680054","ISSUE_DT":"04/16/2025","CFR_STANDARD_CD":"56.12004","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"151.00","CURRENT_ASSESSMENT_AMT":"151.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"2949922","VIOLATION_NO":"9686541","ISSUE_DT":"12/03/2024","CFR_STANDARD_CD":"56.14132(b)(2)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-12-03"},{"SOURCE_ROW_NUMBER":"2949921","VIOLATION_NO":"9686540","ISSUE_DT":"12/03/2024","CFR_STANDARD_CD":"56.14112(b)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"147.00","CURRENT_ASSESSMENT_AMT":"147.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2024-12-03"}]},{"id":"msha-civil-penalty-dockets-decisions","name":"Civil Penalty Dockets and Decisions","domains":["compliance","legal"],"products":["docket lineage","decision outcomes","citation packet precedent"],"rowCount":36,"firstDate":"2010-09-30","lastDate":"2016-04-27","metrics":{"appeals":0,"decisions":36,"recentRows":0,"decisionPenalty":10667,"originalPenalty":19389},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"359585","VIOLATION_NO":"8700442","DOCKET_NO":"WEST 2014-917M","DECISION_DT":"04/27/2016","DECISION_TYPE_CODE_DESC":"Dismissal","ORIGINAL_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"263.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2016-04-27"},{"SOURCE_ROW_NUMBER":"114021","VIOLATION_NO":"8871150","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"117.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2015-09-16"},{"SOURCE_ROW_NUMBER":"114020","VIOLATION_NO":"8871149","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2015-09-16"},{"SOURCE_ROW_NUMBER":"113476","VIOLATION_NO":"8871147","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"117.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2015-09-16"},{"SOURCE_ROW_NUMBER":"320995","VIOLATION_NO":"8606559","DOCKET_NO":"WEST 2012-669M","DECISION_DT":"02/13/2013","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"1944.00","DECISION_PENALTY_AMT":"1500.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2013-02-13"},{"SOURCE_ROW_NUMBER":"320619","VIOLATION_NO":"8606560","DOCKET_NO":"WEST 2012-669M","DECISION_DT":"02/13/2013","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"108.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2013-02-13"},{"SOURCE_ROW_NUMBER":"301400","VIOLATION_NO":"8557382","DOCKET_NO":"WEST 2011-1026M","DECISION_DT":"11/20/2012","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"225.00","JUDGE_FIRST_NAME":"Richard","JUDGE_LAST_NAME":"Manning","sourceDate":"2012-11-20"},{"SOURCE_ROW_NUMBER":"306377","VIOLATION_NO":"8566905","DOCKET_NO":"WEST 2011-1250M","DECISION_DT":"06/27/2012","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"108.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2012-06-27"},{"SOURCE_ROW_NUMBER":"287019","VIOLATION_NO":"6585144","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2011-12-01"},{"SOURCE_ROW_NUMBER":"287018","VIOLATION_NO":"6585138","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"131.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2011-12-01"},{"SOURCE_ROW_NUMBER":"286216","VIOLATION_NO":"6585145","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"263.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2011-12-01"},{"SOURCE_ROW_NUMBER":"286215","VIOLATION_NO":"6585142","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","DECISION_TYPE_CODE_DESC":"Settlement","ORIGINAL_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","JUDGE_FIRST_NAME":"Alan","JUDGE_LAST_NAME":"Paez","sourceDate":"2011-12-01"}]},{"id":"msha-conferences","name":"Conferences","domains":["compliance","legal"],"products":["conference history","post-issuance changes","citation lifecycle"],"rowCount":3,"firstDate":"2013-05-06","lastDate":"2014-04-09","metrics":{"linkedIssuances":3},"periods":{},"recentRecords":[]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":36,"firstDate":"2008-12-09","lastDate":"2014-12-16","metrics":{"decisions":36,"ssChanged":11,"recentRows":0,"decisionPenalty":10667,"proposedPenalty":19389},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"436285","CITATION_NO":"8871147","CITATION_ISSUE_DT":"12/16/2014","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","CFR_STANDARD_CODE":"56.11002","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"117.00","sourceDate":"2014-12-16"},{"SOURCE_ROW_NUMBER":"209496","CITATION_NO":"8871150","CITATION_ISSUE_DT":"12/16/2014","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","CFR_STANDARD_CODE":"56.12004","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"117.00","sourceDate":"2014-12-16"},{"SOURCE_ROW_NUMBER":"90756","CITATION_NO":"8871149","CITATION_ISSUE_DT":"12/16/2014","DOCKET_NO":"WEST 2015-0417","DECISION_DT":"09/16/2015","CFR_STANDARD_CODE":"56.12008","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2014-12-16"},{"SOURCE_ROW_NUMBER":"147306","CITATION_NO":"8700442","CITATION_ISSUE_DT":"03/19/2014","DOCKET_NO":"WEST 2014-917M","DECISION_DT":"04/27/2016","CFR_STANDARD_CODE":"56.11001","ORIGINAL_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"263.00","sourceDate":"2014-03-19"},{"SOURCE_ROW_NUMBER":"312804","CITATION_NO":"8606559","CITATION_ISSUE_DT":"01/24/2012","DOCKET_NO":"WEST 2012-669M","DECISION_DT":"02/13/2013","CFR_STANDARD_CODE":"56.12032","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"1944.00","DECISION_PENALTY_AMT":"1500.00","sourceDate":"2012-01-24"},{"SOURCE_ROW_NUMBER":"256218","CITATION_NO":"8606560","CITATION_ISSUE_DT":"01/24/2012","DOCKET_NO":"WEST 2012-669M","DECISION_DT":"02/13/2013","CFR_STANDARD_CODE":"46.9(h)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"108.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2012-01-24"},{"SOURCE_ROW_NUMBER":"421853","CITATION_NO":"8566905","CITATION_ISSUE_DT":"04/05/2011","DOCKET_NO":"WEST 2011-1250M","DECISION_DT":"06/27/2012","CFR_STANDARD_CODE":"56.1000","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"108.00","DECISION_PENALTY_AMT":".00","sourceDate":"2011-04-05"},{"SOURCE_ROW_NUMBER":"135845","CITATION_NO":"8557382","CITATION_ISSUE_DT":"10/26/2010","DOCKET_NO":"WEST 2011-1026M","DECISION_DT":"11/20/2012","CFR_STANDARD_CODE":"56.14101(a)(2)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"225.00","sourceDate":"2010-10-26"},{"SOURCE_ROW_NUMBER":"191435","CITATION_NO":"6585145","CITATION_ISSUE_DT":"08/04/2010","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","CFR_STANDARD_CODE":"56.14100(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"Y","PROPOSED_PENALTY_AMT":"263.00","DECISION_PENALTY_AMT":"263.00","sourceDate":"2010-08-04"},{"SOURCE_ROW_NUMBER":"23182","CITATION_NO":"6585143","CITATION_ISSUE_DT":"08/04/2010","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","CFR_STANDARD_CODE":"56.14107(a)","ORIGINAL_SIG_SUB_IND":"Y","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"117.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-08-04"},{"SOURCE_ROW_NUMBER":"20121","CITATION_NO":"6585144","CITATION_ISSUE_DT":"08/04/2010","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","CFR_STANDARD_CODE":"56.14132(a)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-08-04"},{"SOURCE_ROW_NUMBER":"248459","CITATION_NO":"6585136","CITATION_ISSUE_DT":"08/03/2010","DOCKET_NO":"WEST 2011-63M","DECISION_DT":"12/01/2011","CFR_STANDARD_CODE":"47.41(a)","ORIGINAL_SIG_SUB_IND":"N","DECISION_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"100.00","DECISION_PENALTY_AMT":"100.00","sourceDate":"2010-08-03"}]},{"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":"2006-05-01","lastDate":"2006-05-01","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":50,"firstDate":"2006-08-30","lastDate":"2026-10-06","metrics":{"inspectors":50,"recentRows":12,"onSiteHours":278.25,"inspectionHours":629.75,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"697028","EVENT_NO":"F0438EB","INSPECTION_BEGIN_DT":"10/06/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"0","SUM_TOTAL_INSP_HOURS":"0","SUM_TOTAL_ON_SITE_HOURS":"0","sourceDate":"2026-10-06"},{"SOURCE_ROW_NUMBER":"1135854","EVENT_NO":"F023EF7","INSPECTION_BEGIN_DT":"04/28/2026","INSPECTION_END_DT":"04/28/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"11.25","SUM_TOTAL_ON_SITE_HOURS":"6.75","sourceDate":"2026-04-28"},{"SOURCE_ROW_NUMBER":"1129479","EVENT_NO":"F023EDF","INSPECTION_BEGIN_DT":"01/12/2026","INSPECTION_END_DT":"01/13/2026","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13.5","SUM_TOTAL_ON_SITE_HOURS":"6.25","sourceDate":"2026-01-12"},{"SOURCE_ROW_NUMBER":"147219","EVENT_NO":"F010CC0","INSPECTION_BEGIN_DT":"04/15/2025","INSPECTION_END_DT":"04/16/2025","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14","SUM_TOTAL_ON_SITE_HOURS":"5.25","sourceDate":"2025-04-15"},{"SOURCE_ROW_NUMBER":"82832","EVENT_NO":"F010C9C","INSPECTION_BEGIN_DT":"12/02/2024","INSPECTION_END_DT":"12/04/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"37","SUM_TOTAL_ON_SITE_HOURS":"12.25","sourceDate":"2024-12-02"},{"SOURCE_ROW_NUMBER":"586335","EVENT_NO":"F002DE6","INSPECTION_BEGIN_DT":"05/30/2024","INSPECTION_END_DT":"05/30/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10","SUM_TOTAL_ON_SITE_HOURS":"5","sourceDate":"2024-05-30"},{"SOURCE_ROW_NUMBER":"568796","EVENT_NO":"6879159","INSPECTION_BEGIN_DT":"11/02/2023","INSPECTION_END_DT":"11/07/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":"3.25","sourceDate":"2023-11-02"},{"SOURCE_ROW_NUMBER":"365551","EVENT_NO":"6827500","INSPECTION_BEGIN_DT":"04/20/2023","INSPECTION_END_DT":"04/21/2023","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"14.25","SUM_TOTAL_ON_SITE_HOURS":"4.5","sourceDate":"2023-04-20"},{"SOURCE_ROW_NUMBER":"1128830","EVENT_NO":"6827449","INSPECTION_BEGIN_DT":"10/12/2022","INSPECTION_END_DT":"10/13/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"13.25","SUM_TOTAL_ON_SITE_HOURS":"6","sourceDate":"2022-10-12"},{"SOURCE_ROW_NUMBER":"445491","EVENT_NO":"6827428","INSPECTION_BEGIN_DT":"08/09/2022","INSPECTION_END_DT":"08/15/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"18.25","SUM_TOTAL_ON_SITE_HOURS":"6.25","sourceDate":"2022-08-09"},{"SOURCE_ROW_NUMBER":"635218","EVENT_NO":"6827330","INSPECTION_BEGIN_DT":"02/14/2022","INSPECTION_END_DT":"02/15/2022","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"9.25","SUM_TOTAL_ON_SITE_HOURS":"3.75","sourceDate":"2022-02-14"},{"SOURCE_ROW_NUMBER":"96893","EVENT_NO":"6827051","INSPECTION_BEGIN_DT":"05/17/2021","INSPECTION_END_DT":"05/19/2021","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"12.25","SUM_TOTAL_ON_SITE_HOURS":"7","sourceDate":"2021-05-17"}]},{"id":"msha-mine-production-quarterly","name":"Mine Employment and Production — Quarterly","domains":["production","safety","compliance"],"products":["production trend","employee hours","rate denominators","seasonality"],"rowCount":158,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2026-Q2":{"hours":1624,"employees":4,"production":0},"2026-Q1":{"hours":1572,"employees":3,"production":0},"2025-Q4":{"hours":1473,"employees":4,"production":0},"2025-Q3":{"hours":1197,"employees":4,"production":0},"2025-Q2":{"hours":1357,"employees":2,"production":0},"2025-Q1":{"hours":1645,"employees":3,"production":0},"2024-Q4":{"hours":1579,"employees":3,"production":0},"2024-Q3":{"hours":2021,"employees":3,"production":0},"2024-Q2":{"hours":1815,"employees":5,"production":0},"2024-Q1":{"hours":1475,"employees":5,"production":0},"2023-Q4":{"hours":1352,"employees":3,"production":0},"2023-Q3":{"hours":1389,"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":24,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":3424,"employees":3,"production":0},"2018":{"hours":3504,"employees":2,"production":0},"2019":{"hours":3274,"employees":2,"production":0},"2020":{"hours":3139,"employees":2,"production":0},"2021":{"hours":3913,"employees":2,"production":0},"2022":{"hours":5000,"employees":3,"production":0},"2023":{"hours":5139,"employees":3,"production":0},"2024":{"hours":6890,"employees":4,"production":0},"2025":{"hours":5672,"employees":3,"production":0},"2026":{"hours":3196,"employees":4,"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":7,"firstDate":"2009-09-24","lastDate":"2024-12-04","metrics":{"recentRows":2,"actionTaken":7,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"292449","EVENT_NO":"F010C9C","SAMPLE_NO":"000000202405156300","SAMPLE_DATE":"12/04/2024","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2024-12-04"},{"SOURCE_ROW_NUMBER":"256791","EVENT_NO":"6827051","SAMPLE_NO":"000000202102264400","SAMPLE_DATE":"05/19/2021","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2021-05-19"},{"SOURCE_ROW_NUMBER":"216358","EVENT_NO":"6726666","SAMPLE_NO":"000000201802952100","SAMPLE_DATE":"05/23/2018","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2018-05-23"},{"SOURCE_ROW_NUMBER":"216357","EVENT_NO":"6726666","SAMPLE_NO":"000000201802952200","SAMPLE_DATE":"05/23/2018","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2018-05-23"},{"SOURCE_ROW_NUMBER":"195548","EVENT_NO":"6592265","SAMPLE_NO":"000000201410884000","SAMPLE_DATE":"12/17/2014","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Truck Driver","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2014-12-17"},{"SOURCE_ROW_NUMBER":"195547","EVENT_NO":"6592265","SAMPLE_NO":"000000201410883800","SAMPLE_DATE":"12/17/2014","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2014-12-17"},{"SOURCE_ROW_NUMBER":"117370","EVENT_NO":"1108215","SAMPLE_NO":"000000200909272300","SAMPLE_DATE":"09/24/2009","CONTAMINANT_DESC":"Respirable dust, <.1mg","CONCENTRATION":"0000.00","EXPOSURE_LIMIT":"0000.00","C_OVER_E":"00.00","JOB_CD_DESC":"Front-end Loader Operator","ACTION_TAKEN_DESC":"NO ACTION","sourceDate":"2009-09-24"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":117,"firstDate":"2007-03-19","lastDate":"2026-04-28","metrics":{"ss":16,"amountDue":24338,"contested":28,"amountPaid":21135,"recentRows":22,"section104d":1,"unterminated":0,"proposedPenalty":32952},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"153799","VIOLATION_NO":"5103921","VIOLATION_ISSUE_DT":"04/28/2026","SIG_SUB":"Y","PART_SECTION":"56.12040","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Reasonably","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/28/2026","PROPOSED_PENALTY":"2936","AMOUNT_DUE":"2936","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-04-28"},{"SOURCE_ROW_NUMBER":"153798","VIOLATION_NO":"5103920","VIOLATION_ISSUE_DT":"04/28/2026","SIG_SUB":"N","PART_SECTION":"56.14112(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Permanent","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/28/2026","PROPOSED_PENALTY":"267","AMOUNT_DUE":"267","AMOUNT_PAID":"0","CONTESTED_IND":"N","sourceDate":"2026-04-28"},{"SOURCE_ROW_NUMBER":"153761","VIOLATION_NO":"5103052","VIOLATION_ISSUE_DT":"01/13/2026","SIG_SUB":"N","PART_SECTION":"56.12028","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"01/13/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-01-13"},{"SOURCE_ROW_NUMBER":"153760","VIOLATION_NO":"5103051","VIOLATION_ISSUE_DT":"01/13/2026","SIG_SUB":"N","PART_SECTION":"56.14107(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"01/13/2026","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2026-01-13"},{"SOURCE_ROW_NUMBER":"153791","VIOLATION_NO":"9680059","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.4130(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153790","VIOLATION_NO":"9680058","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.4104(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153789","VIOLATION_NO":"9680057","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.12019","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153788","VIOLATION_NO":"9680056","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.16006","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153787","VIOLATION_NO":"9680055","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.4101","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153786","VIOLATION_NO":"9680054","VIOLATION_ISSUE_DT":"04/16/2025","SIG_SUB":"N","PART_SECTION":"56.12004","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/16/2025","PROPOSED_PENALTY":"151","AMOUNT_DUE":"151","AMOUNT_PAID":"151","CONTESTED_IND":"N","sourceDate":"2025-04-16"},{"SOURCE_ROW_NUMBER":"153857","VIOLATION_NO":"9686541","VIOLATION_ISSUE_DT":"12/03/2024","SIG_SUB":"N","PART_SECTION":"56.14132(b)(2)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"Fatal","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/04/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-12-03"},{"SOURCE_ROW_NUMBER":"153856","VIOLATION_NO":"9686540","VIOLATION_ISSUE_DT":"12/03/2024","SIG_SUB":"N","PART_SECTION":"56.14112(b)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"12/03/2024","PROPOSED_PENALTY":"147","AMOUNT_DUE":"147","AMOUNT_PAID":"147","CONTESTED_IND":"N","sourceDate":"2024-12-03"}]}],"safety":{"href":"/api/v1/mines/0203122/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0203122/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 operating controls.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12040","part":"56","subchapter":"K","subpart":"K","id":"56.12040","citation":"30 CFR 56.12040","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":"Construction and maintenance of guards.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14112","part":"56","subchapter":"K","subpart":"M","id":"56.14112","citation":"30 CFR 56.14112","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":2},{"chapter":"I","heading":"Testing grounding systems.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12028","part":"56","subchapter":"K","subpart":"K","id":"56.12028","citation":"30 CFR 56.12028","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":"Electric substations and liquid storage facilities.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4130","part":"56","subchapter":"K","subpart":"C","id":"56.4130","citation":"30 CFR 56.4130","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":"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":"Access to stationary electrical equipment or switchgear.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12019","part":"56","subchapter":"K","subpart":"K","id":"56.12019","citation":"30 CFR 56.12019","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 gas cylinder valves.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-O/section-56.16006","part":"56","subchapter":"K","subpart":"O","id":"56.16006","citation":"30 CFR 56.16006","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":"Warning signs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4101","part":"56","subchapter":"K","subpart":"C","id":"56.4101","citation":"30 CFR 56.4101","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":"Horns and backup alarms.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14132","part":"56","subchapter":"K","subpart":"M","id":"56.14132","citation":"30 CFR 56.14132","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":"0203122","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}