{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"1517077","name":"RB #5","status":"Abandoned and Sealed","status_date":"2023-11-06","mine_type":"Underground","coal_metal":"C","commodity":"Coal (Bituminous)","state":"KY","county":"Harlan","nearest_town":"Pathfork","operator_id":"0146154","operator_name":"Montana Bakken, LLC","controller_id":"0125341","controller_name":"Douglas  Warriner","district":"C07","office":"Barbourville KY Field Office","employees":0,"latitude":36.721111,"longitude":-83.408611},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":4200},"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":"1517077","name":"RB #5"},"operator":{"type":"operator","id":"0146154","name":"Montana Bakken, LLC"},"controller":{"type":"controller","id":"0125341","name":"Douglas  Warriner"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00015","name":"Benjamin R.  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The fall measures 20'x 20'x 3'-5' thick.","sourceDate":"2011-12-30"},{"SOURCE_ROW_NUMBER":"18492","DOCUMENT_NO":"220111800037","ACCIDENT_DT":"06/25/2011","DEGREE_INJURY":"NO DYS AWY FRM WRK,NO RSTR ACT","CLASSIFICATION":"POWERED HAULAGE","ACCIDENT_TYPE":"Caught in, under or between a moving and a stationary object","OCCUPATION":"Beltman, Conveyor man,  Conveyor belt worker, Mobile bridge carrierman, Feeder operator, Conveyor rider","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Employee was pushing buggy up a hill, the buggy slipped and lost traction pinning the employee between the buggy and the belt structure.","sourceDate":"2011-06-25"},{"SOURCE_ROW_NUMBER":"35733","DOCUMENT_NO":"220110490028","ACCIDENT_DT":"02/06/2011","DEGREE_INJURY":"ALL OTHER CASES (INCL 1ST AID)","CLASSIFICATION":"HANDTOOLS (NONPOWERED)","ACCIDENT_TYPE":"Struck by... NEC","OCCUPATION":"Security guard, Watchman","NO_INJURIES":"1","DAYS_LOST":"0","NARRATIVE":"Victim was a security guard on duty at RB #5 mine and shot himself in the head with a handgun.","sourceDate":"2011-02-06"},{"SOURCE_ROW_NUMBER":"169032","DOCUMENT_NO":"220110100021","ACCIDENT_DT":"12/28/2010","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"Foreman at RB#5 Mine reported a roof fall, he said it was in the #3 entry inside the mine from the back side. The fall measured approx. 20' X 20' X 4' thick. There was no one injured. He said it fell sometime between the morning and that afternoon.","sourceDate":"2010-12-28"},{"SOURCE_ROW_NUMBER":"134523","DOCUMENT_NO":"220100600049","ACCIDENT_DT":"02/19/2010","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A rock fall measuring approx 20' long X 20' wide X 3' thick was discovered at 1:30PM on 2/19/10. The exact time of the fall is undetermined. The fall was located in the 9th crosscut inby the north portals in the #5 entry. The #5 entry was dangered off on all accessible entrances and the #4 entry will become the designated travel way and primary escapeway.","sourceDate":"2010-02-19"},{"SOURCE_ROW_NUMBER":"263757","DOCUMENT_NO":"220081050056","ACCIDENT_DT":"03/25/2008","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A rock fall was discovered approx. 300' inby portal, in the intake roadway. The fall was one rock that measured 8' wide extending 6' down  to a point. The rock was triangular in shape and was approx 3' high. The rock fell sometime between the morning preshift and when the foreman exited the mine, approx 3:00 pm.","sourceDate":"2008-03-25"},{"SOURCE_ROW_NUMBER":"199083","DOCUMENT_NO":"220073250019","ACCIDENT_DT":"11/05/2007","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A rock fall was discovered on 11/5/07. The fall was located in roadway going to bleeder. The rock fall was approx 90' long in all 3 entries. The fall was from 3' to 8' high.","sourceDate":"2007-11-05"},{"SOURCE_ROW_NUMBER":"237901","DOCUMENT_NO":"220072430050","ACCIDENT_DT":"08/19/2007","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"HANDLING OF MATERIALS","ACCIDENT_TYPE":"Over-exertion in lifting objects","OCCUPATION":"Bull gang foreman, Labor foreman, Leadman, Section foreman, Shift boss","NO_INJURIES":"1","DAYS_LOST":"1","NARRATIVE":"The employee claimed he was picking up crib blocks on the outside of the mine and allegedly strained his upper back.","sourceDate":"2007-08-19"},{"SOURCE_ROW_NUMBER":"31464","DOCUMENT_NO":"220072320085","ACCIDENT_DT":"08/01/2007","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A roof fall was discovered approx 200' inby the portal in the return aircourse. The fall occurred sometime during the off shift between 7-31-07 and 8-1-07. The fall measured approx 12' wide by 40' long (extending into the crosscut) and 4' in height. The area was cleaned up and dresupported with cribs, collars and roof bolts.","sourceDate":"2007-08-01"},{"SOURCE_ROW_NUMBER":"229329","DOCUMENT_NO":"220072320084","ACCIDENT_DT":"07/31/2007","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"During the examination of the no.1 conveyor belt it was discovered that the mine roof had set down & broke some cross collars that had been set along with cribs to support the area making the area unsafe for travel. The area was located at the 3rd crosscut inby the portal & measured approx 8'L x 8'W with the thickness undetermined due to the fall being caught by the cribs.","sourceDate":"2007-07-31"},{"SOURCE_ROW_NUMBER":"117279","DOCUMENT_NO":"220060390051","ACCIDENT_DT":"12/30/2005","DEGREE_INJURY":"ACCIDENT ONLY","CLASSIFICATION":"FALL OF ROOF OR BACK","ACCIDENT_TYPE":"Accident type, without injuries","OCCUPATION":"NO VALUE FOUND","NO_INJURIES":"0","DAYS_LOST":"0","NARRATIVE":"A roof fall was discovered at the beginning of the shift on the main line belt conveyor 11 crosscuts inby the portal.  The fall measured approx. 20' long by 8' wide and 6' thick at its peak. The fall was removed and the area was supported with cribs and cross collars.","sourceDate":"2005-12-30"},{"SOURCE_ROW_NUMBER":"246551","DOCUMENT_NO":"220060040031","ACCIDENT_DT":"12/10/2005","DEGREE_INJURY":"DAYS AWAY FROM WORK ONLY","CLASSIFICATION":"STEPPING OR KNEELING ON OBJECT","ACCIDENT_TYPE":"Struck against stationary object","OCCUPATION":"Bull gang foreman, Labor foreman, Leadman, Section foreman, Shift boss","NO_INJURIES":"1","DAYS_LOST":"5","NARRATIVE":"Injured stated that on 12-10-05 he was kneeling down to shovel some material when as he knelt down he struck his knee on a rock. 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VOIDED","sourceDate":"2001-03-05"},{"SOURCE_ROW_NUMBER":"113125","CASSETTE_NO":"57347387","SAMPLE_DT":"03/05/2001","QUARTZ_PCT":"01.8","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2001-03-05"},{"SOURCE_ROW_NUMBER":"73794","CASSETTE_NO":"57323119","SAMPLE_DT":"01/18/2001","QUARTZ_PCT":"04.0","OCC_CODE_DESC":"OCCUPATION CODE NOT FOUND","SAMPLE_TYPE_DESC":"DESIGNATED AREA","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2001-01-18"},{"SOURCE_ROW_NUMBER":"140930","CASSETTE_NO":"57265365","SAMPLE_DT":"04/11/2000","QUARTZ_PCT":"06.2","OCC_CODE_DESC":"UTILITY MAN","SAMPLE_TYPE_DESC":"DESIGNATED WORK POSITION","VOID_CD_DESC":"SAMPLE NOT VOIDED","sourceDate":"2000-04-11"}]},{"id":"msha-violations","name":"Violations","domains":["compliance","safety","legal"],"products":["citation and order record","condition text","Title 30 linkage","abatement 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Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/1517077/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":"Sealing of mines.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1711","part":"75","subchapter":"O","subpart":"R","id":"75.1711","citation":"30 CFR 75.1711","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":4},{"chapter":"I","heading":"Drinking water.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1718","part":"75","subchapter":"O","subpart":"R","id":"75.1718","citation":"30 CFR 75.1718","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Emergency communications; requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1713-2","part":"75","subchapter":"O","subpart":"R","id":"75.1713-2","citation":"30 CFR 75.1713-2","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":2},{"chapter":"I","heading":"Testing, examination, and maintenance of circuit breakers; record.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-J/section-77.900-2","part":"77","subchapter":"O","subpart":"J","id":"77.900-2","citation":"30 CFR 77.900-2","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":2},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.336","heading":"Sampling and monitoring requirements.","id":"75.336","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.336","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a) A certified person as defined in § 75.100 shall monitor atmospheres of sealed areas. Sealed areas shall be monitored, whether ingassing or outgassing, for methane and oxygen concentrations and the direction of leakage.\n\n(1) Each sampling pipe and approved sampling location shall be sampled at least every 24 hours.\n\n(i) Atmospheres with seals of 120 psi or greater shall be sampled until the design strength is reached for every seal used to seal the area.\n\n(ii) Atmospheres with seals less than 120 psi constructed before October 20, 2008 shall be monitored for methane and oxygen concentrations and maintained inert. The operator may request that the District Manager approve different sampling locations and frequencies in the ventilation plan, provided at least one sample is taken at each set of seals at least every 7 days.\n\n(iii) Atmospheres with seals less than 120 psi constructed after October 20, 2008 shall be monitored for methane and oxygen concentrations and maintained inert. The operator may request that the District Manager approve different sampling locations and frequencies in the ventilation plan after a minimum of 14 days and after the seal design strength is reached, provided at least one sample is taken at each set of seals at least every 7 days.\n\n(2) The mine operator shall evaluate the atmosphere in the sealed area to determine whether sampling through the sampling pipes in seals and approved locations provides appropriate sampling locations of the sealed area. The mine operator shall make the evaluation immediately after the minimum 14-day required sampling, if the mine ventilation system is reconfigured, if changes occur that adversely affect the sealed area, or if the District Manager requests an evaluation. When the results of the evaluations indicate the need for additional sampling locations, the mine operator shall provide the additional locations and have them approved in the ventilation plan. The District Manager may require additional sampling locations and frequencies in the ventilation plan.\n\n(3) Mine operators with an approved ventilation plan addressing spontaneous combustion pursuant to § 75.334(f) shall sample the sealed atmosphere in accordance with the ventilation plan.\n\n(4) The District Manager may approve in the ventilation plan the use of a continuous monitoring system in lieu of monitoring provisions in this section.\n\n(b)(1) Except as provided in § 75.336(d), the atmosphere in the sealed area is considered inert when the oxygen concentration is less than 10.0 percent or the methane concentration is less than 3.0 percent or greater than 20.0 percent.\n\n(2) Immediate action shall be taken by the mine operator to restore an inert sealed atmosphere behind seals with strengths less than 120 psi. Until the atmosphere in the sealed area is restored to an inert condition, the sealed atmosphere shall be monitored at each sampling pipe and approved location at least once every 24 hours.\n\n(c) Except as provided in § 75.336(d), when a sample is taken from the sealed atmosphere with seals of less than 120 psi and the sample indicates that the oxygen concentration is 10 percent or greater and methane is between 4.5 percent and 17 percent, the mine operator shall immediately take an additional sample and then immediately notify the District Manager. When the additional sample indicates that the oxygen concentration is 10 percent or greater and methane is between 4.5 percent and 17 percent, persons shall be withdrawn from the affected area which is the entire mine or other affected area identified by the operator and approved by the District Manager in the ventilation plan, except those persons referred to in § 104(c) of the Act. The operator may identify areas in the ventilation plan to be approved by the District Manager where persons may be exempted from withdrawal. The operator's request shall address the location of seals in relation to: Areas where persons work and travel in the mine; escapeways and potential for damage to the escapeways; and ventilation systems and controls in areas where persons work or travel and where ventilation is used for escapeways. The operator's request shall also address the gas concentration of other sampling locations in the sealed area and other required information. Before miners reenter the mine, the mine operator shall have a ventilation plan revision approved by the District Manager specifying the actions to be taken.\n\n(d) In sealed areas with a demonstrated history of carbon dioxide or sealed areas where inert gases have been injected, the operator may request that the District Manager approve in the ventilation plan an alternative method to determine if the sealed atmosphere is inert and when miners have to be withdrawn. The mine operator shall address in the ventilation plan the specific levels of methane, carbon dioxide, nitrogen and oxygen; the sampling methods and equipment used; and the methods to evaluate these concentrations underground at the seal.\n\n(e) Recordkeeping. (1) The certified person shall promptly record each sampling result including the location of the sampling points, whether ingassing or outgassing, and oxygen and methane concentrations. The results of oxygen and methane samples shall be recorded as the percentage of oxygen and methane measured by the certified person and any hazardous condition found in accordance with § 75.363.\n\n(2) The mine operator shall retain sampling records at the mine for at least one year from the date of the sampling.\n\n[73 FR 21207, Apr. 18, 2008; 73 FR 27730, May 14, 2008]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.364","heading":"Weekly examination.","id":"75.364","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-D/section-75.364","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"D","subpartHeading":"Subpart D—Ventilation","text":"(a) Worked-out areas. (1) At least every 7 days, a certified person shall examine unsealed worked-out areas where no pillars have been recovered by traveling to the area of deepest penetration; measuring methane and oxygen concentrations and air quantities and making tests to determine if the air is moving in the proper direction in the area. The locations of measurement points where tests and measurements will be performed shall be included in the mine ventilation plan and shall be adequate in number and location to assure ventilation and air quality in the area. Air quantity measurements shall also be made where the air enters and leaves the worked-out area. An alternative method of evaluating the ventilation of the area may be approved in the ventilation plan.\n\n(2) At least every 7 days, a certified person shall evaluate the effectiveness of bleeder systems required by § 75.334 as follows:\n\n(i) Measurements of methane and oxygen concentrations and air quantity and a test to determine if the air is moving in its proper direction shall be made where air enters the worked-out area.\n\n(ii) Measurements of methane and oxygen concentrations and air quantity and a test to determine if the air is moving in the proper direction shall be made immediately before the air enters a return split of air.\n\n(iii) At least one entry of each set of bleeder entries used as part of a bleeder system under § 75.334 shall be traveled in its entirety. Measurements of methane and oxygen concentrations and air quantities and a test to determine if the air is moving in the proper direction shall be made at the measurement point locations specified in the mine ventilation plan to determine the effectiveness of the bleeder system.\n\n(iv) In lieu of the requirements of paragraphs (a)(2)(i) and (iii) of this section, an alternative method of evaluation may be specified in the ventilation plan provided the alternative method results in proper evaluation of the effectiveness of the bleeder system.\n\n(b) Hazardous conditions and violations of mandatory health or safety standards. At least every 7 days, an examination for hazardous conditions and violations of the mandatory health or safety standards referenced in paragraph (b)(8) of this section shall be made by a certified person designated by the operator at the following locations:\n\n(1) In at least one entry of each intake air course, in its entirety, so that the entire air course is traveled.\n\n(2) In at least one entry of each return air course, in its entirety, so that the entire air course is traveled.\n\n(3) In each longwall or shortwall travelway in its entirety, so that the entire travelway is traveled.\n\n(4) At each seal along return and bleeder air courses and at each seal along intake air courses not examined under § 75.360(b)(5).\n\n(5) In each escapeway so that the entire escapeway is traveled.\n\n(6) On each working section not examined under § 75.360(b)(3) during the previous 7 days.\n\n(7) At each water pump not examined during a preshift examination conducted during the previous 7 days.\n\n(8) Weekly examinations shall include examinations to identify violations of the standards listed below:\n\n(i) §§ 75.202(a) and 75.220(a)(1)—roof control;\n\n(ii) §§ 75.333(h) and 75.370(a)(1)—ventilation, methane;\n\n(iii) §§ 75.400 and 75.403—accumulations of combustible materials and application of rock dust; and\n\n(iv) § 75.1403—maintenance of off track haulage roadways, and track haulage, track switches, and other components for haulage;\n\n(v) § 75.1722(a)—guarding moving machine parts; and\n\n(vi) § 75.1731(a)—maintenance of belt conveyor components.\n\n(c) Measurements and tests. At least every 7 days, a certified person shall—\n\n(1) Determine the volume of air entering the main intakes and in each intake split;\n\n(2) Determine the volume of air and test for methane in the last open crosscut in any pair or set of developing entries or rooms, in the return of each split of air immediately before it enters the main returns, and where the air leaves the main returns; and\n\n(3) Test for methane in the return entry nearest each set of seals immediately after the air passes the seals.\n\n(d) Hazardous conditions shall be corrected immediately. If the condition creates an imminent danger, everyone except those persons referred to in section 104(c) of the Act shall be withdrawn from the area affected to a safe area until the hazardous condition is corrected. Any violation of the nine mandatory health or safety standards found during a weekly examination shall be corrected.\n\n(e) The weekly examination may be conducted at the same time as the preshift or on-shift examinations.\n\n(f) (1) The weekly examination is not required during any 7 day period in which no one enters any underground area of the mine.\n\n(2) Except for certified persons required to make examinations, no one shall enter any underground area of the mine if a weekly examination has not been completed within the previous 7 days.\n\n(g) Certification. The person making the weekly examinations shall certify by initials, date, and the time that the examination was made. Certifications and times shall appear at enough locations to show that the entire area has been examined.\n\n(h) Recordkeeping. At the completion of any shift during which a portion of a weekly examination is conducted, a record of the results of each weekly examination, including a record of hazardous conditions and violations of the nine mandatory health or safety standards found during each examination and their locations, the corrective action taken, and the results and location of air and methane measurements, shall be made. The results of methane tests shall be recorded as the percentage of methane measured by the examiner. The record shall be made by the person making the examination or a person designated by the operator. If made by a person other than the examiner, the examiner shall verify the record by initials and date by or at the end of the shift for which the examination was made. The record shall be countersigned by the mine foreman or equivalent mine official by the end of the mine foreman's or equivalent mine official's next regularly scheduled working shift. The records required by this section shall be made in a secure book that is not susceptible to alteration or electronically in a computer system so as to be secure and not susceptible to alteration.\n\n(i) Retention period. Records shall be retained at a surface location at the mine for at least 1 year and shall be made available for inspection by authorized representatives of the Secretary and the representative of miners.\n\n[61 FR 9829, Mar. 11, 1996, as amended at 77 FR 20715, Apr. 6, 2012]","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1517077","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}