# 民法 / Civil Code — 第五百二十九条 (Article 529) - 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 (Article 529)（懸賞広告） — address `art-529` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/ja/civil-code/art-529 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-529 - 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（懸賞広告） — (Offers of Reward to the Public) caption: Ministry of Justice translation — Japanese Law Translation Database System art-529 · https://japanlaw.org/ja/civil-code/art-529 · https://japanlaw.org/l/129AC0000000089/art-529 **第一項** ある行為をした者に一定の報酬を与える旨を広告した者（以下「懸賞広告者」という。）は、その行為をした者がその広告を知っていたかどうかにかかわらず、その者に対してその報酬を与える義務を負う。 art-529/par-1 · https://japanlaw.org/ja/civil-code/art-529/par-1 · https://japanlaw.org/l/129AC0000000089/art-529/par-1 A person that makes an offer to the public indicating that a person that performs a certain act will be given a certain reward (referred to as an "offer of reward to the public" below) is obligated to give the reward to the person that performs the act, regardless of whether or not the person performing that act knows of the offer. Ministry of Justice translation — Japanese Law Translation Database System ## Cited by 1 provision cites this one. No official source publishes this direction. - 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/ja/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