Enforcement record
Administrative Guidance against 小湊鉄道株式会社
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View company profileAction type
Administrative Guidance
Law
Railway Business Act
Authority
Action date
14 May 2025
Current page: Enforcement record
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- Captured: Jul 11, 2026, 09:34 PM JST
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Action summary
- Company
- 小湊鉄道株式会社Japanese originalOriginal: 小湊鉄道株式会社Corporate Number: 8040001053928
- Entity match
- Confirmed entity match100/100Machine checkedsource_corporate_number_nta_current_name国税庁法人番号データとの独立照合で対象法人を確認しました(source_corporate_number_nta_current_name)。
- Governing law
- Railway Business Act鉄道事業法
- Action type
- Administrative Guidance行政指導
- Action date
- 14 May 2025
- Issuing authority
- Industry context
- 鉄道事業者
Violation
Between March 3 and March 5, 2025, a safety audit was conducted on Kotobuki Railway Co., Ltd. by the Chiba Prefectural Public Safety Commission. The audit identified several areas requiring improvement, leading to the issuance of administrative guidance. The company is instructed to enhance its safety management system by establishing a structure that accurately monitors on-site conditions, regularly verifies operational status, and ensures the effectiveness of corrective actions. Specific issues include: (1) failure to record detailed tunnel inspections every 20 years as per standards; (2) discrepancies between inspection items and records for tunnel and electrical equipment; (3) inspections of long-distance track circuits, uninsulated circuits, operation telephones, and high-voltage switchgear not conducted within permissible periods; (4) inconsistencies in vehicle maintenance inspections and records; (5) lack of planned repairs based on track displacement inspections; (6) failure to follow procedures for new construction of box culverts under tracks; (7) inadequate staff training for train drivers, especially those involved in vehicle maintenance; (8) insufficient health and vision checks for staff operating trains; and (9) improper operational procedures during train dispatching. The company must report on the implementation of corrective measures by August 14, 2025.
Show original Japanese text
令和7年3月3日から3月5日まで、貴社に対して保安監査を実施したところであるが、監査の結果、改善を要する事項が認められたことから、下記の事項について、改善措置を講ずるよう指示する。 講じた措置については、令和7年8月14日までに報告されたい。 記 以下の事項をはじめとして、本社が、現場の状況を的確に把握する体制を整備した上で、現場の業務の実施状況を定期的に検証して、課題を整理し、必要な改善を行うとともに、改善の実行性が確保されるよう安全管理体制の強化を図ること。 1.各実施基準に規定する定期検査の一部について、(1)から(4)のことを確認した。 (1)軌道土木施設実施基準第39条第1項で規定する検査のうち、20年を超えない期間ごとに行うトンネルの詳細な検査について同実施基準第40条で規定する記録が行われていないこと。 (2)軌道土木施設実施基準第39条で規定するトンネルの検査の検査項目と記録簿様式の検査項目が相違しており、一部の検査項目(「排水設備の通水の良否」「建築限界抵触の有無」)が行われていないこと。 (3)電気設備実施基準第89条で規定する検査のうち、長大軌道回路、無絶縁軌道回路、運転指令電話及び高圧開閉所について、基準期間の許容期間内に検査が行われていないこと。 (4)車両整備実施基準第19条で規定する重要部検査及び全般検査の検査項目と記録簿様式の検査項目が相違しており、一部の検査項目(連結装置の「ひじと守腕との内面距離の測定」)が行われていないこと。 よって、定期検査については、各実施基準に基づき、各検査の意味や重要性を理解するとともに、確実な検査の実施及び記録並びに適切な管理ができるよう必要な措置を講じ、定期検査の結果が実施基準を遵守していることを確認する体制を構築すること。 2.軌道土木施設実施基準第39条第1項で規定する軌道変位検査の結果に基づき、補修を要する箇所の把握及び計画的な整備が実施されておらず、同実施基準第36条第2項で規定する整備基準値を超過する箇所が多数放置されている状況を確認した。 よって、軌道の適切な保全に必要な検査の実施、その検査結果から得られた補修対象箇所の把握、補修対象箇所の(緊急性に応じた)優先順位を踏まえた補修計画の策定、補修計画に基づく補修の実施、補修結果の記録等が確実に行われるように現行の実施内容を検証し、軌道の保全方法に係る規定の見直し等の必要な措置を講ずること。 3.線路下を横断する道路のボックスカルバート新設の工事において、鉄道事業法第12条に基づく鉄道施設の変更(橋りょうの新設)の手続きを行っていないことを確認した。 よって、速やかに所要の手続きを行うとともに、担当者への教育の実施も含め、手続き漏れを防ぐよう必要な措置を構ずること。 4.運転取扱実施基準第11条の規定に基づき実施している教育及び訓練等について、主として車両の整備を担当する一部の係員が運転士として列車を操縦することがあるにもかかわらず、運転士に対する教育及び訓練等を実施していないことを確認した。 よって、他の業務と運転士を兼務する係員についても、運転士に対する必要な教育及び訓練等を実施するとともに、教育及び訓練等を実施していない係員に作業をさせることのないよう適切に管理すること。 5.運転取扱実施基準第11条の規定に基づき動力車を操縦する係員に実施した身体機能検査において、次の(1)及び(2)のとおり視機能が動力車操縦者の基準に達していることを適切に確認していなかった。 (1)令和4年度に実施した保安監査において、視機能の検査のうち両眼視力について、検査が実施されていないことを改善指示しているが、同様に両眼視力に関する検査が行われておらず、また、適切に管理されていないこと。 (2)矯正眼鏡の使用が動力車操縦者運転免許の条件となっている一部の係員に対して、矯正眼鏡を使用したうえで視力の検査を行っていないこと。 よって、動力車を操縦する係員に対する身体機能検査について、同条に基づき適切に実施したうえで、作業を行うのに支障がないことを適切に確認するとともに、身体機能検査の実施及び結果を適切に管理するために管理方法を改善すること。 6.運転取扱実施基準に規定する運転取扱いについて、指導通信式及び伝令法を施行したときに、関係する駅長が「列車運転状況表」に必要事項の記録をしていないこと、及び「運転通告券」により必要な事項を通告していないこと等、同実施基準に基づき適切に運転取扱いが行われていないことを確認した。 よって、運転関係実施基準に基づき適切な運転取扱いができるよう必要な措置を講ずるとともに、実施された運転取扱いが実施基準を遵守し適切であることを確認する体制を構築すること。 【関東運輸局】
Business location and permit details
- Business location address
- 千葉県市原市
- Legal articles
- 鉄道事業法鉄道に関する技術上の基準を定める省令
- Overview page
- https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=tetudou&EID=search&no=192
These fields are extracted from the original Japanese disclosure or linked overview pages when available.
Compliance context
Low-mediumAdministrative guidance or supervision was publicly disclosed by the authority.
Japanese regulatory disclosure under Railway Business Act.
Use as a monitoring signal. Confirm details before treating it as a formal sanction.
This context is an operational aid for review workflows, not a credit opinion or legal conclusion.
Open original sources and verification detailsOfficial URL, direct PDF, and Kiroku archive
- Extracted at
- 2026-07-17T09:22:06.733+00:00
- Evidence checked
- 2026-07-17T09:22:06.661+00:00
- Archive captured
- 2026-07-11T12:34:15.650673+00:00
Show audit JSON
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"company_name_registry": "小湊鉄道株式会社",
"corporate_number": "8040001053928",
"law": {
"ja": "鉄道事業法",
"en": "Railway Business Act"
},
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"en": "Administrative Guidance"
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"notes": "国税庁法人番号データとの独立照合で対象法人を確認しました(source_corporate_number_nta_current_name)。"
},
"review": {
"status": "machine_reviewed",
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"compliance_context": {
"severity": "Low-medium",
"actionMeaning": "Administrative guidance or supervision was publicly disclosed by the authority.",
"practicalNote": "Use as a monitoring signal. Confirm details before treating it as a formal sanction.",
"lawContext": "Japanese regulatory disclosure under Railway Business Act."
},
"evidence": {
"recordUrl": "https://regbase.jp/en/enforcement/97e35ce0-32d2-462f-a1fc-ff10096bd675",
"officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=tetudou&EID=search&no=192",
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"archiveUrl": "https://kiroku.today/a/9d547292fcgcfqim",
"archivedSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=tetudou&EID=search&no=192",
"archiveCapturedAt": "2026-07-11T12:34:15.650673+00:00",
"extractedAt": "2026-07-17T09:22:06.733+00:00",
"translatedAt": "2026-07-10T13:01:50.008+00:00",
"evidenceCheckedAt": "2026-07-17T09:22:06.661+00:00",
"generatedAt": "2026-09-09T09:17:16.458Z"
},
"limitations": [
"RegBase aggregates public Japanese government disclosures and does not provide a credit opinion.",
"English summaries are provided for reference. The original Japanese source is authoritative.",
"Possible or unresolved entity matches should be manually verified before use in a decision."
]
}The original Japanese disclosure is the authoritative record. Use possible or unresolved matches only as leads for manual review.
Language
日本語版を見る (Japanese)Company info
- English name
- 小湊鉄道株式会社 Japanese original
- Japanese name
- 小湊鉄道株式会社
- Corporate Number
- 8040001053928
- Registered address
- 千葉県市原市五井中央東1丁目1番地2
Other confirmed records for this company
- Administrative Guidance28 Apr 2026
The Kanto Transport Bureau issued administrative guidance to Kominato Railway Co., Ltd. following a safety audit conducted from March 3 to March 5, 2026. The audit identified deficiencies in track maintenance, particularly regarding significant elevation differences and drainage functions. The company was instructed to develop a comprehensive repair plan, including drainage and ballast replenishment, and to report on measures taken by July 28, 2026.
- Administrative Guidance14 May 2025
The Chiba Prefectural Public Transportation Authority issued administrative guidance to Kominato Railway Co., Ltd. following a safety audit conducted from March 3 to March 5, 2025. The guidance outlines required improvements in inspection procedures, safety management systems, construction procedures, personnel training, and operational practices, with a report due by August 14, 2025.
- Administrative Guidance8 Mar 2024
The company was issued an administrative guidance by the Kanto Transport Bureau on March 8, 2024, due to improper alcohol testing procedures by a driver, which involved unauthorized substitution of alcohol tests and failure to follow safety protocols. The guidance requires the company to implement corrective measures, including reviewing operational methods, training, and record-keeping related to alcohol testing and driver education, and to report on these measures by March 8, 2024.
- Administrative Guidance20 Jan 2023
The Chiba-based Minato Railway Co., Ltd. was subject to administrative guidance following a safety audit conducted from October 19 to 21, 2022. The audit identified multiple deficiencies in safety management, maintenance, and personnel procedures. The company was instructed to implement corrective measures by March 31, 2023, including establishing proper training plans, ensuring timely inspections, maintaining records, and complying with legal reporting requirements under the Railway Business Act and related regulations.
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About this recordAggregated and translated from public Japanese government disclosures. The English text is for reference only — authoritative content is the linked Japanese source.