# Changes to Japanese law on 6 June 2025

This is the Markdown twin of https://japanlaw.org/en/changes/2025-06-06. Every law, and how to address a provision: https://japanlaw.org/llms.txt. The same laws as MCP tools (no sign-in): https://japanlaw.org/mcp.

What changed on 6 June 2025 in 7 laws on this site: for each, the Act that amends it.

- Companies Act (会社法) — https://japanlaw.org/en/companies-act
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/companies-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/417AC0000000086/20250606_507AC0000000057
- Medical Care Act (医療法) — https://japanlaw.org/en/medical-care-act
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/medical-care-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/323AC0000000205/20250606_507AC0000000057
- National Pension Act (国民年金法) — https://japanlaw.org/en/national-pension-act
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/national-pension-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/334AC0000000141/20250606_507AC0000000057
- Act on General Rules for National Taxes (国税通則法) — https://japanlaw.org/en/national-tax-general-rules-act
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/national-tax-general-rules-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/337AC0000000066/20250606_507AC0000000057
- Local Tax Act (地方税法) — https://japanlaw.org/en/local-tax-act
  - Amended by Act Partially Amending the Electricity Business Act, etc. to Establish an Electricity Supply System for Realizing a Decarbonized Society (Act No. 44 of 2023) (脱炭素社会の実現に向けた電気供給体制の確立を図るための電気事業法等の一部を改正する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/505AC0000000044 (as Markdown: https://japanlaw.org/md/en/acts/505AC0000000044)
    Listed with the law's amendments: https://japanlaw.org/en/local-tax-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/325AC0000000226/20250606_505AC0000000044
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/local-tax-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/325AC0000000226/20250606_507AC0000000057
- Civil Enforcement Act (民事執行法) — https://japanlaw.org/en/civil-enforcement-act
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/civil-enforcement-act/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/354AC0000000004/20250606_507AC0000000057
- Civil Code (民法) — https://japanlaw.org/en/civil-code
  - Amended by Act on the Arrangement, etc. of Related Acts upon the Enforcement of the Act on Security Assignment Contracts and Retention of Title Contracts (Act No. 57 of 2025) (譲渡担保契約及び所有権留保契約に関する法律の施行に伴う関係法律の整備等に関する法律)
    The Act, and every law here it amends: https://japanlaw.org/en/acts/507AC0000000057 (as Markdown: https://japanlaw.org/md/en/acts/507AC0000000057)
    Listed with the law's amendments: https://japanlaw.org/en/civil-code/amendments; the text on e-Gov: https://laws.e-gov.go.jp/law/129AC0000000089/20250606_507AC0000000057

Every day: https://japanlaw.org/en/changes

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## Sources

- Amendments and their dates: e-Gov (Digital Agency) (7 records)
- English names of the laws: Japanese Law Translation, Ministry of Justice (7 records)
- English titles of the amending laws: Written for this site with AI