# 健康保険法 / Health Insurance Act — 第二十九条 (Supplementary Provisions, Article 29)

- Law: 健康保険法 (Health Insurance Act), 大正十一年法律第七十号
- English title "Health Insurance Act": 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: 第二十九条 (Supplementary Provisions, Article 29) — address `suppl-4181-83/art-29`
- Text in force since: 2026-10-01
- URL (the page that opens at this provision): https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-29
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-29
- 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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### 第二十九条
<sup>suppl-4181-83/art-29 · https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-29 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-29</sup>

**第一項**  協会は、成立後一年内に、平成二十年十月改正健保法第百六十条第二項に規定する都道府県単位保険料率（以下「都道府県単位保険料率」という。）を決定しなければならない。
<sup>suppl-4181-83/art-29/par-1 · https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-29/par-1 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-29/par-1</sup>
Within one year after its establishment, JHIA must determine the insurance premium rate for each prefecture prescribed in Article 160, paragraph (2) of the Health Insurance Act as Amended in October 2008 (hereinafter referred to as the "insurance premium rate for each prefecture").
<sup>machine translation, not official</sup>

**第二項**  協会が都道府県単位保険料率を決定するまでの間は、協会が管掌する健康保険の被保険者の保険料については、第四条の規定の施行の日の前日における旧政管健保の一般保険料率を用いる。
<sup>suppl-4181-83/art-29/par-2 · https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-29/par-2 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-29/par-2</sup>
Until JHIA determines the insurance premium rate for each prefecture, the general insurance premium rate of former government-managed health insurance on the day before the date of enforcement of the provisions of Article 4 is used for the insurance premiums of insured persons of the health insurance administered by JHIA.
<sup>machine translation, not official</sup>

**第三項**  協会が都道府県単位保険料率を決定するまでの間は、平成二十年十月改正健保法第百六十八条第一項第一号イに規定する平均保険料率は、第四条の規定の施行の日の前日における旧政管健保の一般保険料率とする。
<sup>suppl-4181-83/art-29/par-3 · https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-29/par-3 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-29/par-3</sup>
Until JHIA determines the insurance premium rate for each prefecture, the average insurance premium rate prescribed in Article 168, paragraph (1), item (i), (a) of the Health Insurance Act as Amended in October 2008 is the general insurance premium rate of former government-managed health insurance on the day before the date of enforcement of the provisions of Article 4.
<sup>machine translation, not official</sup>

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## Cites
- suppl-4181-83/art-29/par-1: 平成二十年十月改正健保法第百六十条第二項 → 健康保険法 第百六十条第二項 (Article 160, paragraph (2)), art-160/par-2 — https://japanlaw.org/en/health-insurance-act/art-160/par-2 · https://japanlaw.org/l/211AC0000000070/art-160/par-2
- suppl-4181-83/art-29/par-3: 平成二十年十月改正健保法第百六十八条第一項第一号 → 健康保険法 第百六十八条第一項第一号 (Article 168, paragraph (1), item (i)), art-168/par-1/item-1 — https://japanlaw.org/en/health-insurance-act/art-168/par-1/item-1 · https://japanlaw.org/l/211AC0000000070/art-168/par-1/item-1

## Cited by

2 provisions cite this one. No official source publishes this direction.

- 健康保険法 附則第一条第一項第五号（施行期日） — https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-1/par-1/item-5 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-1/par-1/item-5
- 健康保険法 附則第百三十三条第一項（その他の経過措置の政令への委任） — https://japanlaw.org/en/health-insurance-act/suppl-4181-83/art-133/par-1 · https://japanlaw.org/l/211AC0000000070/suppl-4181-83/art-133/par-1

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 健康保険法 — the text in force from 2026-10-01 (https://laws.e-gov.go.jp/law/211AC0000000070/20261001_507AC0000000087), retrieved 2026-10-10
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Health Insurance Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/3266/tb), retrieved 2026-10-10
- claude-sonnet-5-5 — Machine translation, batch health-insurance-act-20261010T183826-026, translated 2026-10-11
- This site's parser, version 189 — 健康保険法 — structure, counts, cross-references and defined terms, computed 2026-10-10
