{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-17T06:17:15.228Z","identity":{"mine_id":"0405884","name":"California Hectorite Pit","status":"Abandoned","status_date":"2025-09-09","mine_type":"Surface","coal_metal":"M","commodity":"Clay, Ceramic, Refractory Mnls.","state":"CA","county":"Inyo","nearest_town":"Amargosa Valley, NV","operator_id":"0149493","operator_name":"BYK USA LLC","controller_id":"0113325","controller_name":"Altana Group (Germany)","district":"M7","office":"Henderson NV Field Office","employees":0,"latitude":36.423056,"longitude":-116.471944},"coverage":{"contributingSources":12,"registeredSources":20,"sourceRows":61},"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":"0405884","name":"California Hectorite Pit"},"operator":{"type":"operator","id":"0149493","name":"BYK USA LLC"},"controller":{"type":"controller","id":"0113325","name":"Altana Group (Germany)"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M09256","name":"Laporte Plc"},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"1991-09-25","validTo":"2002-10-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|M09256|1991-09-25|2002-10-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0043717","name":"Rockwood Specialties Group Inc"},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"2002-10-31","validTo":"2013-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|0043717|2002-10-31|2013-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0113325","name":"Altana Group (Germany)"},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"2013-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|0113325|2013-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L12358","name":"BYK Additives Inc."},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"2014-05-22","validTo":"2017-02-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|L12358|2014-05-22|2017-02-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0043717","name":"Rockwood Specialties Group Inc"},"object":{"type":"operator","id":"L12358","name":"BYK Additives Inc."},"validFrom":"2014-05-22","validTo":"2013-09-30","current":false,"derived":true,"evidenceMineId":"0405884","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|L12358|2014-05-22|0043717|2002-10-31|4784"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0113325","name":"Altana Group (Germany)"},"object":{"type":"operator","id":"L12358","name":"BYK Additives Inc."},"validFrom":"2014-05-22","validTo":"2017-02-14","current":false,"derived":true,"evidenceMineId":"0405884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|L12358|2014-05-22|0113325|2013-10-01|21142"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M09256","name":"Laporte Plc"},"object":{"type":"operator","id":"L12358","name":"BYK Additives Inc."},"validFrom":"2014-05-22","validTo":"2002-10-30","current":false,"derived":true,"evidenceMineId":"0405884","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|L12358|2014-05-22|M09256|1991-09-25|146001"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0149493","name":"BYK USA LLC"},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"2017-02-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|0149493|2017-02-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0113325","name":"Altana Group (Germany)"},"object":{"type":"mine","id":"0405884","name":"California Hectorite Pit"},"validFrom":"2017-02-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|0113325|2017-02-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0113325","name":"Altana Group (Germany)"},"object":{"type":"operator","id":"0149493","name":"BYK USA LLC"},"validFrom":"2017-02-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"0405884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"0405884|0149493|2017-02-15|0113325|2017-02-15|21147"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":2,"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":"2025-09-09","lastDate":"2025-09-09","metrics":{},"periods":{},"recentRecords":[]},{"id":"msha-assessed-violations","name":"Assessed Violations","domains":["compliance","legal"],"products":["penalty lifecycle","paid and outstanding amounts","assessment aging"],"rowCount":5,"firstDate":"2017-08-16","lastDate":"2019-04-02","metrics":{"ss":0,"delinquent":3,"recentRows":0,"paidPenalty":590,"proposedPenalty":590,"currentAssessment":590},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"2575700","VIOLATION_NO":"9430154","ISSUE_DT":"04/02/2019","CFR_STANDARD_CD":"56.20002(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"121.00","CURRENT_ASSESSMENT_AMT":"121.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2019-04-02"},{"SOURCE_ROW_NUMBER":"2575699","VIOLATION_NO":"9430153","ISSUE_DT":"04/02/2019","CFR_STANDARD_CD":"56.14130(c)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"121.00","CURRENT_ASSESSMENT_AMT":"121.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2019-04-02"},{"SOURCE_ROW_NUMBER":"2417331","VIOLATION_NO":"8996425","ISSUE_DT":"08/16/2017","CFR_STANDARD_CD":"56.20008(a)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-08-16"},{"SOURCE_ROW_NUMBER":"2417330","VIOLATION_NO":"8996424","ISSUE_DT":"08/16/2017","CFR_STANDARD_CD":"56.15001","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-08-16"},{"SOURCE_ROW_NUMBER":"2417329","VIOLATION_NO":"8996423","ISSUE_DT":"08/16/2017","CFR_STANDARD_CD":"56.4230(a)(1)","SIG_SUB_IND":"N","CITATION_TYPE_CD":"Citation","PROPOSED_PENALTY_AMT":"116.00","CURRENT_ASSESSMENT_AMT":"116.00","ASSESS_CASE_STATUS_CD":"Closed","sourceDate":"2017-08-16"}]},{"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":"2018-04-19","lastDate":"2018-04-19","metrics":{"appeals":0,"decisions":1,"recentRows":0,"decisionPenalty":0,"originalPenalty":116},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"416876","VIOLATION_NO":"8996926","DOCKET_NO":"WEST 2018-0187","DECISION_DT":"04/19/2018","DECISION_TYPE_CODE_DESC":"Withdrawal","ORIGINAL_PENALTY_AMT":"116.00","DECISION_PENALTY_AMT":"0.00","JUDGE_FIRST_NAME":"Margaret","JUDGE_LAST_NAME":"Miller","sourceDate":"2018-04-19"}]},{"id":"msha-contested-violations","name":"Contested Violations","domains":["compliance","legal"],"products":["contest status","time to resolution","contested-rate context"],"rowCount":1,"firstDate":"2017-10-17","lastDate":"2017-10-17","metrics":{"decisions":1,"ssChanged":1,"recentRows":0,"decisionPenalty":0,"proposedPenalty":116},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"384387","CITATION_NO":"8996926","CITATION_ISSUE_DT":"10/17/2017","DOCKET_NO":"WEST 2018-0187","DECISION_DT":"04/19/2018","CFR_STANDARD_CODE":"56.1000","ORIGINAL_SIG_SUB_IND":"N","PROPOSED_PENALTY_AMT":"116.00","DECISION_PENALTY_AMT":".00","sourceDate":"2017-10-17"}]},{"id":"msha-contractor-production-quarterly","name":"Contractor Employment and Production — Quarterly","domains":["contractors","production","safety"],"products":["contractor exposure denominator","productivity","presence windows"],"rowCount":22,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-contractor-production-yearly","name":"Contractor Employment and Production — Yearly","domains":["contractors","production","safety"],"products":["long-run contractor trend","annual denominator reconciliation"],"rowCount":8,"firstDate":null,"lastDate":null,"metrics":{"linkedContractors":1,"notMineAttributable":1},"periods":{},"recentRecords":[]},{"id":"msha-controller-operator-history","name":"Controller and Operator History","domains":["identity","compliance"],"products":["historical ownership attribution","operator transitions","valid-time joins"],"rowCount":4,"firstDate":"2014-05-22","lastDate":"2017-02-15","metrics":{"recentRows":0,"currentOperatorTenures":1,"completedOperatorTenures":3},"periods":{},"recentRecords":[]},{"id":"msha-inspections","name":"Inspections","domains":["safety","compliance"],"products":["inspection mix","on-site hours","event context","citation rate denominator"],"rowCount":7,"firstDate":"2017-08-16","lastDate":"2025-08-14","metrics":{"inspectors":7,"recentRows":2,"onSiteHours":15.5,"inspectionHours":61.25,"inspectionSamples":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"547578","EVENT_NO":"F011F2A","INSPECTION_BEGIN_DT":"08/14/2025","INSPECTION_END_DT":"08/14/2025","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7.75","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2025-08-14"},{"SOURCE_ROW_NUMBER":"667974","EVENT_NO":"F01188D","INSPECTION_BEGIN_DT":"08/21/2024","INSPECTION_END_DT":"08/22/2024","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"10.25","SUM_TOTAL_ON_SITE_HOURS":"2.75","sourceDate":"2024-08-21"},{"SOURCE_ROW_NUMBER":"246498","EVENT_NO":"6826525","INSPECTION_BEGIN_DT":"04/18/2019","INSPECTION_END_DT":"04/18/2019","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5.75","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2019-04-18"},{"SOURCE_ROW_NUMBER":"325445","EVENT_NO":"6826519","INSPECTION_BEGIN_DT":"04/01/2019","INSPECTION_END_DT":"04/02/2019","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"17.25","SUM_TOTAL_ON_SITE_HOURS":"8","sourceDate":"2019-04-01"},{"SOURCE_ROW_NUMBER":"1120923","EVENT_NO":"6726440","INSPECTION_BEGIN_DT":"10/17/2017","INSPECTION_END_DT":"10/17/2017","ACTIVITY_CODE":"E28","ACTIVITY":"Mine Idle Activity","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"5","SUM_TOTAL_ON_SITE_HOURS":".75","sourceDate":"2017-10-17"},{"SOURCE_ROW_NUMBER":"758183","EVENT_NO":"6726062","INSPECTION_BEGIN_DT":"09/07/2017","INSPECTION_END_DT":"09/07/2017","ACTIVITY_CODE":"E15","ACTIVITY":"Compliance Follow-up Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"7.25","SUM_TOTAL_ON_SITE_HOURS":"1.25","sourceDate":"2017-09-07"},{"SOURCE_ROW_NUMBER":"688271","EVENT_NO":"6726056","INSPECTION_BEGIN_DT":"08/16/2017","INSPECTION_END_DT":"08/17/2017","ACTIVITY_CODE":"E01","ACTIVITY":"Regular Safety and Health Inspection","NBR_INSPECTOR":"1","SUM_TOTAL_INSP_HOURS":"8","SUM_TOTAL_ON_SITE_HOURS":"1.25","sourceDate":"2017-08-16"}]},{"id":"msha-mine-production-yearly","name":"Mine Employment and Production — Yearly","domains":["production","safety","compliance"],"products":["annual trend","backfill","quarterly reconciliation"],"rowCount":5,"firstDate":null,"lastDate":null,"metrics":{},"periods":{"2017":{"hours":360,"employees":1,"production":0},"2018":{"hours":79,"employees":1,"production":0},"2019":{"hours":142,"employees":2,"production":0},"2024":{"hours":410,"employees":1,"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":1,"firstDate":"2019-04-02","lastDate":"2019-04-02","metrics":{"recentRows":0,"actionTaken":1,"maxExposureRatio":0,"overExposureLimit":0,"exposureRatioTotal":0},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"221087","EVENT_NO":"6826519","SAMPLE_NO":"000000201901836000","SAMPLE_DATE":"04/02/2019","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":"2019-04-02"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement patterns"],"rowCount":5,"firstDate":"2017-08-16","lastDate":"2019-04-02","metrics":{"ss":0,"amountDue":590,"contested":0,"amountPaid":590,"recentRows":0,"section104d":0,"unterminated":0,"proposedPenalty":590},"periods":{},"recentRecords":[{"SOURCE_ROW_NUMBER":"276085","VIOLATION_NO":"9430154","VIOLATION_ISSUE_DT":"04/02/2019","SIG_SUB":"N","PART_SECTION":"56.20002(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"04/02/2019","PROPOSED_PENALTY":"121","AMOUNT_DUE":"121","AMOUNT_PAID":"121","CONTESTED_IND":"N","sourceDate":"2019-04-02"},{"SOURCE_ROW_NUMBER":"276084","VIOLATION_NO":"9430153","VIOLATION_ISSUE_DT":"04/02/2019","SIG_SUB":"N","PART_SECTION":"56.14130(c)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"04/18/2019","PROPOSED_PENALTY":"121","AMOUNT_DUE":"121","AMOUNT_PAID":"121","CONTESTED_IND":"N","sourceDate":"2019-04-02"},{"SOURCE_ROW_NUMBER":"276088","VIOLATION_NO":"8996425","VIOLATION_ISSUE_DT":"08/16/2017","SIG_SUB":"N","PART_SECTION":"56.20008(a)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/07/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-08-16"},{"SOURCE_ROW_NUMBER":"276087","VIOLATION_NO":"8996424","VIOLATION_ISSUE_DT":"08/16/2017","SIG_SUB":"N","PART_SECTION":"56.15001","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"LowNegligence","TERMINATION_DT":"09/07/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-08-16"},{"SOURCE_ROW_NUMBER":"276086","VIOLATION_NO":"8996423","VIOLATION_ISSUE_DT":"08/16/2017","SIG_SUB":"N","PART_SECTION":"56.4230(a)(1)","CIT_ORD_SAFE":"Citation","LIKELIHOOD":"Unlikely","INJ_ILLNESS":"LostDays","NO_AFFECTED":"1","NEGLIGENCE":"ModNegligence","TERMINATION_DT":"09/07/2017","PROPOSED_PENALTY":"116","AMOUNT_DUE":"116","AMOUNT_PAID":"116","CONTESTED_IND":"N","sourceDate":"2017-08-16"}]}],"safety":{"href":"/api/v1/mines/0405884/safety","description":"Full-period safety series, top CFR sections and paginated activity. Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/0405884/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":"Potable water.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20002","part":"56","subchapter":"K","subpart":"S","id":"56.20002","citation":"30 CFR 56.20002","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":"Roll-over protective structures (ROPS) and seat belts.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14130","part":"56","subchapter":"K","subpart":"M","id":"56.14130","citation":"30 CFR 56.14130","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":"Toilet facilities.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-S/section-56.20008","part":"56","subchapter":"K","subpart":"S","id":"56.20008","citation":"30 CFR 56.20008","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":"First-aid materials.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001","part":"56","subchapter":"K","subpart":"N","id":"56.15001","citation":"30 CFR 56.15001","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":"Self-propelled equipment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4230","part":"56","subchapter":"K","subpart":"C","id":"56.4230","citation":"30 CFR 56.4230","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":"0405884","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}