# 民法 / Civil Code — 第五百二十九条の二 (Article 529-2) - Law: 民法 (Civil Code), 明治二十九年法律第八十九号 - English title "Civil Code": Ministry of Justice translation - 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: 第五百二十九条の二 (Article 529-2)（指定した行為をする期間の定めのある懸賞広告） — address `art-529-2` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-529-2 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-529-2 - 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. --- ### 第五百二十九条の二（指定した行為をする期間の定めのある懸賞広告） — (Offers of Reward to the Public Made by Specifying Period for Performance of Requested Act) caption: Ministry of Justice translation — Japanese Law Translation Database System art-529-2 · https://japanlaw.org/en/civil-code/art-529-2 · https://japanlaw.org/l/129AC0000000089/art-529-2 **第一項** 懸賞広告者は、その指定した行為をする期間を定めてした広告を撤回することができない。ただし、その広告において撤回をする権利を留保したときは、この限りでない。 art-529-2/par-1 · https://japanlaw.org/en/civil-code/art-529-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-529-2/par-1 An offeror of reward to the public may not withdraw the offer to the public made by specifying a period during which the requested act should be performed; provided, however, that this does not apply if, in the offer to the public, the offeror reserves the right to withdraw the offer. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の広告は、その期間内に指定した行為を完了する者がないときは、その効力を失う。 art-529-2/par-2 · https://japanlaw.org/en/civil-code/art-529-2/par-2 · https://japanlaw.org/l/129AC0000000089/art-529-2/par-2 The offer to the public referred to in the preceding paragraph ceases to be effective if no person completes the requested act within that period. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-529-2/par-2: 前項 → 民法 第五百二十九条の二第一項 (Article 529-2, paragraph (1)), art-529-2/par-1 — https://japanlaw.org/en/civil-code/art-529-2/par-1 · https://japanlaw.org/l/129AC0000000089/art-529-2/par-1 ## Cited by 2 provisions cite this one. No official source publishes this direction. - 民法 第五百二十九条の二第二項（指定した行為をする期間の定めのある懸賞広告） — https://japanlaw.org/en/civil-code/art-529-2/par-2 · https://japanlaw.org/l/129AC0000000089/art-529-2/par-2 - 民法 附則第二十九条第三項（契約の成立に関する経過措置） — https://japanlaw.org/en/civil-code/suppl-4291-44/art-29/par-3 · https://japanlaw.org/l/129AC0000000089/suppl-4291-44/art-29/par-3 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11 - This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11