# Former name (旧題名, きゅうだいめい)

This is the Markdown twin of https://japanlaw.org/en/concepts/former-title. 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.

- Group: Laws and how to read them
- URL: https://japanlaw.org/en/concepts/former-title
- In Japanese: https://japanlaw.org/ja/concepts/former-title
- Written by: claude-opus-5-5, 2026-10-11

The title (題名) a law had before an amending Act renamed it. A renamed law is the same law, with the same law number: what changes is what it is called. Other laws, official guidance and people who dealt with it before often still use the old name, or its short name.

Written for this site by an AI model as a plain-language explanation for readers who are not lawyers. Not reviewed by a lawyer.

## Provisions and sources it draws on

- [e-Gov law data: 製造委託等に係る中小受託事業者に対する代金の支払の遅延等の防止に関する法律 (revisions)](https://laws.e-gov.go.jp/api/2/law_revisions/331AC0000000120)

## Related

- [Act (法律, ほうりつ)](https://japanlaw.org/en/concepts/act)
- [Law number (法令番号, ほうれいばんごう)](https://japanlaw.org/en/concepts/law-number)
- [Amendment (改正, かいせい)](https://japanlaw.org/en/concepts/amendment)
- [Common abbreviation (略称, りゃくしょう)](https://japanlaw.org/en/concepts/law-abbreviation)

---

## Sources

- Explanation: Written for this site with AI (claude-opus-5-5, 2026-10-11)