# 遺失物法 / Lost Property Act — 第三十九条 (Article 39)

- Law: 遺失物法 (Lost Property Act), 平成十八年法律第七十三号
- English title "Lost Property Act": Ministry of Justice translation database, which lists the title
- Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say.
- Provision: 第三十九条 (Article 39)（経過措置） — address `art-39`
- Text in force since: 2025-06-01
- URL (the page that opens at this provision): https://japanlaw.org/en/lost-property-act/art-39
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/418AC0000000073/art-39
- Every provision below carries its address and both URLs on the line under it.
- Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below.

Only the Japanese as published by the government has legal effect; the text
below is a copy of it. Every English rendering below is a translation and
says which kind: the Ministry of Justice's translation, or this
site's machine translation, whose model and date the Sources list names.
They are never merged and never substituted for one another.

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### 第三十九条（経過措置） — Transitional Measures
<sup>caption: machine translation, not official</sup>
<sup>art-39 · https://japanlaw.org/en/lost-property-act/art-39 · https://japanlaw.org/l/418AC0000000073/art-39</sup>

**第一項**  この法律の規定に基づき政令又は国家公安委員会規則を制定し、又は改廃する場合においては、政令又は国家公安委員会規則で、その制定又は改廃に伴い合理的に必要とされる範囲内において、所要の経過措置（罰則に関する経過措置を含む。）を定めることができる。
<sup>art-39/par-1 · https://japanlaw.org/en/lost-property-act/art-39/par-1 · https://japanlaw.org/l/418AC0000000073/art-39/par-1</sup>
If a Cabinet Order or a Rule of the National Public Safety Commission is enacted, revised, or abolished under the provisions of this Act, necessary transitional measures (including transitional measures concerning penal provisions) may be prescribed by the Cabinet Order or the National Public Safety Commission Rules to the extent considered reasonably necessary for the enactment, revision or abolition.
<sup>machine translation, not official</sup>

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 遺失物法 — the text in force from 2025-06-01 (https://laws.e-gov.go.jp/law/418AC0000000073/20250601_504AC0000000068), retrieved 2026-10-11
- Japanese Law Translation Database System, Ministry of Justice (法務省) — 遺失物法 — its English title as the Ministry of Justice's translation database lists it (https://www.japaneselawtranslation.go.jp/en/laws/view/1640), retrieved 2026-10-11
- claude-sonnet-5-5 — Machine translation, batch lost-property-act-20261011T093710-006, translated 2026-10-11
- This site's parser, version 186 — 遺失物法 — structure, counts, cross-references and defined terms, computed 2026-10-11