# 民法 / Civil Code — 第三百九十八条の十七 (Article 398-17)

- 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: 第三百九十八条の十七 (Article 398-17)（共同根抵当の変更等） — address `art-398-17`
- Text in force since: 2026-06-24
- URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-398-17
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-398-17
- 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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### 第三百九十八条の十七（共同根抵当の変更等） — (Changes in Joint Revolving Mortgages)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-398-17 · https://japanlaw.org/en/civil-code/art-398-17 · https://japanlaw.org/l/129AC0000000089/art-398-17</sup>

    **第一項**  前条の登記がされている根抵当権の担保すべき債権の範囲、債務者若しくは極度額の変更又はその譲渡若しくは一部譲渡は、その根抵当権が設定されているすべての不動産について登記をしなければ、その効力を生じない。
    <sup>art-398-17/par-1 · https://japanlaw.org/en/civil-code/art-398-17/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-17/par-1</sup>
    A change in the scope, obligors or maximum amount of the claims to be secured, or assignment or partial assignment of the revolving mortgages for which registration is effected in accordance with the preceding Article does not take effect unless registration is effected with respect to all immovables over which that revolving mortgages are established.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第二項**  前条の登記がされている根抵当権の担保すべき元本は、一個の不動産についてのみ確定すべき事由が生じた場合においても、確定する。
    <sup>art-398-17/par-2 · https://japanlaw.org/en/civil-code/art-398-17/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-17/par-2</sup>
    The principal secured by the revolving mortgage for registered pursuant to the preceding Article is fixed even when grounds on which the principal is fixed arise only with respect to one immovable property alone.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-398-17/par-1: 前条 → 民法 第三百九十八条の十六 (Article 398-16), art-398-16 — https://japanlaw.org/en/civil-code/art-398-16 · https://japanlaw.org/l/129AC0000000089/art-398-16
- art-398-17/par-2: 前条 → 民法 第三百九十八条の十六 (Article 398-16), art-398-16 — https://japanlaw.org/en/civil-code/art-398-16 · https://japanlaw.org/l/129AC0000000089/art-398-16

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## 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