Enforcement record

Administrative Guidance against 土佐くろしお鉄道株式会社

土佐くろしお鉄道株式会社 (Railway Business Act)

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Railway Business ActConfirmed entity match22 December 2023

Action type

Administrative Guidance

Law

Railway Business Act

Authority

Action date

22 December 2023

Current page: Enforcement record

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Source verification

Public-source and preservation status

Publishing authority
Official source URL: Recorded by RegBase
Entity match: Confirmed against the current entity-resolution policy
Kiroku preservation: Completed archive verified; Captured: Jul 11, 2026, 03:34 PM JST

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/api/v1/enforcements?corporate_number=9490001001543&limit=10

Open JSON Specs

Action summary

Company: 土佐くろしお鉄道株式会社Japanese original
Original: 土佐くろしお鉄道株式会社
Corporate Number: 9490001001543
Entity match: Confirmed entity match100/100Machine checked
source_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: 22 December 2023
Issuing authority
Industry context: 鉄道事業者

Violation

Machine-translated summary — verify against original

Between October 3 and 6, 2023, a safety audit was conducted on Tosa Kuroshio Railway Co., Ltd. The audit revealed multiple issues requiring improvement. Specifically, driver-related personnel did not perform temporary driver suitability inspections (attention distribution tests) as mandated by Article 10 of the operational standards management regulations. Additionally, electrical staff did not receive new employee training as specified in the training regulations, and the annual training plans and results were not reported to the General Affairs Manager as required. The company must promptly conduct the overdue inspections and training, and review its training and management systems to ensure proper implementation. Furthermore, the periodic inspection of automatic train stop devices, as stipulated in Article 79 of the safety equipment implementation standards, was not performed despite the Q-values falling below standard. Repairs must be promptly carried out, and maintenance management systems should be improved. Inspections of crossing alarms at Nakakado crossing, including measurement of control section length, were not conducted. These must be performed immediately, and inspection systems should be enhanced to ensure regular and thorough inspections. Lastly, the voltage measurement results of signal lamps at Kubokawa Station were not recorded during routine inspections as required. Records must be maintained accurately, and inspection management systems should be improved. The company is instructed to investigate the root causes of these deficiencies, implement corrective actions, and report the measures taken by January 29, 2024.

Show original Japanese text

令和５年１０月３日から６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。改善措置を講ずるにあたっては、発生した背後要因を含めて原因を究明した上で、同種事象の再発防止のための措置を講ずること。講じた措置については、令和６年１月２９日までに報告されたい。記１．「列車等の運転に直接関係する作業を行う係員」のうち、実施基準管理規程第１０条に基づく「運転関係業務適性検査手続（規程）」に規定する臨時検査を適用する係員への運転適性検査「注意配分検査」が実施されていないことを確認した。また、電気係の係員について、実施基準管理規程第１０条に基づく「教育訓練規程」に規定される新入社員教育が実施されていないことを確認した。さらに、教育・訓練の年間計画及び結果を「教育訓練規程」に規定されるとおり総務部長に報告されていないことを確認した。よって、注意配分検査が未実施である係員に対し、速やかに当該検査を実施し、適性を確認すること。また、新入社員教育が未実施となっている電気係の係員に対しても速やかに同教育を実施すること。さらに、教育及び訓練に係る実施体制、管理体制を見直し、教育及び訓練が適切かつ確実に実施、管理できるよう改善すること。２．運転保安設備実施基準第７９条に規定されている自動列車停止装置の定期検査について、Ｑの値が標準値を下回っているにもかかわらず、修繕を実施していないことを確認した。よって、標準値を下回っているものについては、速やかに修繕を実施すること。また、施設の修繕について、速やかに修繕が実施できるよう管理方法を見直すなど適切に施設を維持管理できるよう体制を改善すること。３．運転保安設備実施基準第７９条に規定されている踏切警報機の定期検査について、中角踏切の制御区間長の測定を実施していないことを確認した。よって、速やかに制御区間長の測定を実施し、施設の安全性を確認すること。また、施設の定期検査について、実施基準に定められた定期検査の項目について、確実に定期検査を実施できるよう体制を改善すること。４．運転保安設備実施基準第７９条に規定されている電気信号機の定期検査について、窪川駅の場内信号機の信号灯端子電圧の測定の検査結果が記録されていないことを確認した。よって、定期検査の検査結果の記録を確実に行うこと。また、適切に検査結果を管理できるよう体制を改善すること。以上【四国運輸局】

Business location and permit details

Business location address: 高知県高知市
Legal articles: 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=106

These fields are extracted from the original Japanese disclosure or linked overview pages when available.

Compliance context

Low-medium

Administrative 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

Original source (Japanese)Open preserved source and evidence pack

Extracted at: 2026-07-17T09:23:18.124+00:00
Evidence checked: 2026-07-17T09:23:18.066+00:00
Archive captured: 2026-07-11T06:34:41.751908+00:00

Show audit JSON

{
  "record": {
    "id": "f55f994c-66cc-4805-9617-acd5fe8fe8d5",
    "url": "https://regbase.jp/en/enforcement/f55f994c-66cc-4805-9617-acd5fe8fe8d5",
    "company_name_original": "土佐くろしお鉄道株式会社",
    "company_name_registry": "土佐くろしお鉄道株式会社",
    "corporate_number": "9490001001543",
    "law": {
      "ja": "鉄道事業法",
      "en": "Railway Business Act"
    },
    "action_type": {
      "ja": "行政指導",
      "en": "Administrative Guidance"
    },
    "authority": {
      "ja": "",
      "en": ""
    }
  },
  "entity_match": {
    "status": "confirmed",
    "confidence": 100,
    "method": "source_corporate_number_nta_current_name",
    "method_label": "source_corporate_number_nta_current_name",
    "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",
    "label": "Machine checked"
  },
  "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/f55f994c-66cc-4805-9617-acd5fe8fe8d5",
    "officialSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=tetudou&EID=search&no=106",
    "officialDocumentUrl": null,
    "archiveUrl": "https://kiroku.today/a/6ed6c414b7fzkxmw",
    "archivedSourceUrl": "https://www.mlit.go.jp/nega-inf/cgi-bin/search.cgi?jigyoubunya=tetudou&EID=search&no=106",
    "archiveCapturedAt": "2026-07-11T06:34:41.751908+00:00",
    "extractedAt": "2026-07-17T09:23:18.124+00:00",
    "translatedAt": "2026-07-10T13:10:53.72+00:00",
    "evidenceCheckedAt": "2026-07-17T09:23:18.066+00:00",
    "generatedAt": "2026-09-08T22:28:43.584Z"
  },
  "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: 土佐くろしお鉄道株式会社 Japanese original
Japanese name: 土佐くろしお鉄道株式会社
Corporate Number: 9490001001543
Registered address: 高知県高知市丸ノ内１丁目２番２０号

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Other confirmed records for this company

Administrative Guidance9 Jun 2023
On June 9, 2023, the Shikoku Transport Bureau issued administrative guidance to Tosa Kuroshio Railway Co., Ltd., regarding a train derailment incident on June 2, 2023, caused by landslides from slopes near Tosa-Shirahama Station to Arai River Station. The incident occurred despite prior instructions to monitor weather conditions and implement appropriate safety measures during heavy rain and typhoon alerts. The company was warned to review operational regulations and permanent slope countermeasures to prevent recurrence, especially during the rainy season.

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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.