# 個人情報の保護に関する法律 / Act on the Protection of Personal Information — 第七十三条 (Article 73) - Law: 個人情報の保護に関する法律 (Act on the Protection of Personal Information), 平成十五年法律第五十七号 - English title "Act on the Protection of Personal Information": 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: 第七十三条 (Article 73)（仮名加工情報の取扱いに係る義務） — address `art-73` - Text in force since: 2026-10-01 - URL (the page that opens at this provision): https://japanlaw.org/en/personal-information-protection-act/art-73 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/415AC0000000057/art-73 - 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. --- ### 第七十三条（仮名加工情報の取扱いに係る義務） — (Obligations on the Handling of Pseudonymized Personal Information) caption: Ministry of Justice translation — Japanese Law Translation Database System art-73 · https://japanlaw.org/en/personal-information-protection-act/art-73 · https://japanlaw.org/l/415AC0000000057/art-73 **第一項** 行政機関の長等は、法令に基づく場合を除くほか、仮名加工情報（個人情報であるものを除く。以下この条及び第百二十八条において同じ。）を第三者（当該仮名加工情報の取扱いの委託を受けた者を除く。）に提供してはならない。 art-73/par-1 · https://japanlaw.org/en/personal-information-protection-act/art-73/par-1 · https://japanlaw.org/l/415AC0000000057/art-73/par-1 Except in cases based on laws and regulations, an administrative organ's head or administrative entity must not provide pseudonymized personal information (excluding those that are personal information; hereinafter the same applies in this Article and Article 128) to a third party (excluding a person entrusted with the handling of the pseudonymized personal information). Ministry of Justice translation — Japanese Law Translation Database System **第二項** 行政機関の長等は、その取り扱う仮名加工情報の漏えいの防止その他仮名加工情報の安全管理のために必要かつ適切な措置を講じなければならない。 art-73/par-2 · https://japanlaw.org/en/personal-information-protection-act/art-73/par-2 · https://japanlaw.org/l/415AC0000000057/art-73/par-2 An administrative organ's head or administrative entity must take necessary and appropriate measures for managing the security of personal data including preventing the leaking of pseudonymized personal information they handle. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 行政機関の長等は、仮名加工情報を取り扱うに当たっては、法令に基づく場合を除き、当該仮名加工情報の作成に用いられた個人情報に係る本人を識別するために、削除情報等（仮名加工情報の作成に用いられた個人情報から削除された記述等及び個人識別符号並びに第四十一条第一項の規定により行われた加工の方法に関する情報をいう。）を取得し、又は当該仮名加工情報を他の情報と照合してはならない。 art-73/par-3 · https://japanlaw.org/en/personal-information-protection-act/art-73/par-3 · https://japanlaw.org/l/415AC0000000057/art-73/par-3 Except cases based on laws and regulations, in handling pseudonymized personal information, an administrative organ's head or administrative entity must neither acquire deleted or other related information (meaning identifiers or their equivalent, individual identification codes, and information on the method of processing as performed under Article 41, paragraph (1) that have been deleted from the personal information used to prepare the pseudonymized personal information), nor collate the pseudonymized personal information with other information, in order to identify the person identifiable by personal information that was used to prepare that pseudonymized personal information. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 行政機関の長等は、仮名加工情報を取り扱うに当たっては、法令に基づく場合を除き、電話をかけ、郵便若しくは民間事業者による信書の送達に関する法律第二条第六項に規定する一般信書便事業者若しくは同条第九項に規定する特定信書便事業者による同条第二項に規定する信書便により送付し、電報を送達し、ファクシミリ装置若しくは電磁的方法（電子情報処理組織を使用する方法その他の情報通信の技術を利用する方法であって個人情報保護委員会規則で定めるものをいう。）を用いて送信し、又は住居を訪問するために、当該仮名加工情報に含まれる連絡先その他の情報を利用してはならない。 art-73/par-4 · https://japanlaw.org/en/personal-information-protection-act/art-73/par-4 · https://japanlaw.org/l/415AC0000000057/art-73/par-4 Except cases based on laws and regulations, in handling pseudonymized personal information, an administrative organ's head or administrative entity must not utilize a contact address and other information contained in the pseudonymized personal information for telephoning, for sending by mail or by correspondence delivery prescribed in Article 2, paragraph (2) of the Act on Correspondence Delivery by Private Business Operators conducted by a general correspondence delivery operator prescribed in Article 2, paragraph (6) of that Act or a specified correspondence delivery operator prescribed in Article 2, paragraph (9) of that Act, for delivering a telegram, for transmitting information using a facsimile machine or electronic or magnetic means (meaning means that use electronic data processing system or means that utilize other information communication technology as prescribed by Order of the Personal Information Protection Commission), or for visiting a residence. Ministry of Justice translation — Japanese Law Translation Database System **第五項** 前各項の規定は、行政機関の長等から仮名加工情報の取扱いの委託（二以上の段階にわたる委託を含む。）を受けた者が受託した業務を行う場合について準用する。 art-73/par-5 · https://japanlaw.org/en/personal-information-protection-act/art-73/par-5 · https://japanlaw.org/l/415AC0000000057/art-73/par-5 The provisions of each preceding paragraph apply mutatis mutandis to cases in which a person that has been entrusted (including entrustment via two or more layers) with the handling of pseudonymized personal information by an administrative organ's head or administrative entity conducts the entrusted business. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-73/par-1: この条 → 個人情報の保護に関する法律 第七十三条 (Article 73), art-73 — https://japanlaw.org/en/personal-information-protection-act/art-73 · https://japanlaw.org/l/415AC0000000057/art-73 - art-73/par-1: 第百二十八条 → 個人情報の保護に関する法律 第百二十八条 (Article 128), art-128 — https://japanlaw.org/en/personal-information-protection-act/art-128 · https://japanlaw.org/l/415AC0000000057/art-128 - art-73/par-3: 第四十一条第一項 → 個人情報の保護に関する法律 第四十一条第一項 (Article 41, paragraph (1)), art-41/par-1 — https://japanlaw.org/en/personal-information-protection-act/art-41/par-1 · https://japanlaw.org/l/415AC0000000057/art-41/par-1 - art-73/par-4: 民間事業者による信書の送達に関する法律第二条第六項 → e-Gov law 414AC0000000099, 第二条第六項 (Article 2, paragraph (6)), art-2/par-6 — not held in this collection - art-73/par-4: 同条第九項 → e-Gov law 414AC0000000099, 第二条第九項 (Article 2, paragraph (9)), art-2/par-9 — not held in this collection - art-73/par-4: 同条第二項 → e-Gov law 414AC0000000099, 第二条第二項 (Article 2, paragraph (2)), art-2/par-2 — not held in this collection - art-73/par-5: 前各項 → 個人情報の保護に関する法律 第七十三条第一項 (Article 73, paragraph (1)), art-73/par-1 — https://japanlaw.org/en/personal-information-protection-act/art-73/par-1 · https://japanlaw.org/l/415AC0000000057/art-73/par-1 - art-73/par-5: 前各項 → 個人情報の保護に関する法律 第七十三条第二項 (Article 73, paragraph (2)), art-73/par-2 — https://japanlaw.org/en/personal-information-protection-act/art-73/par-2 · https://japanlaw.org/l/415AC0000000057/art-73/par-2 - art-73/par-5: 前各項 → 個人情報の保護に関する法律 第七十三条第三項 (Article 73, paragraph (3)), art-73/par-3 — https://japanlaw.org/en/personal-information-protection-act/art-73/par-3 · https://japanlaw.org/l/415AC0000000057/art-73/par-3 - art-73/par-5: 前各項 → 個人情報の保護に関する法律 第七十三条第四項 (Article 73, paragraph (4)), art-73/par-4 — https://japanlaw.org/en/personal-information-protection-act/art-73/par-4 · https://japanlaw.org/l/415AC0000000057/art-73/par-4 ## Cited by 3 provisions cite this one. No official source publishes this direction. - 個人情報の保護に関する法律 第七十三条第一項（仮名加工情報の取扱いに係る義務） — https://japanlaw.org/en/personal-information-protection-act/art-73/par-1 · https://japanlaw.org/l/415AC0000000057/art-73/par-1 - 個人情報の保護に関する法律 第七十三条第五項（仮名加工情報の取扱いに係る義務） — https://japanlaw.org/en/personal-information-protection-act/art-73/par-5 · https://japanlaw.org/l/415AC0000000057/art-73/par-5 - 個人情報の保護に関する法律 第百七十六条第一項 — https://japanlaw.org/en/personal-information-protection-act/art-176/par-1 · https://japanlaw.org/l/415AC0000000057/art-176/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 個人情報の保護に関する法律 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/415AC0000000057/20261001_507AC0000000070), retrieved 2026-10-10 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Act on the Protection of Personal Information — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4241/tb), retrieved 2026-10-10 - This site's parser, version 190 — 個人情報の保護に関する法律 — structure, counts, cross-references and defined terms, computed 2026-10-10