Article 1, paragraph (1)
Private rights must be congruent with the public welfare.
私権は、公共の福祉に適合しなければならない。
This text is not in force yetIt by 23 December 2028, on a day set by — at the latest in 2 years
Read the text in force →Civil Code
民法
Chapter I Common Provisions
The law as Act Partially Amending the Civil Code, etc. (Act No. 45 of 2026) leaves it, with the words it changes marked.
The main text is read a page at a time: a chapter to a page, and a long chapter in runs of articles. The whole main text, and the supplementary provisions and appended tables this amendment changes. Those it leaves untouched are on the page for the text in force.
Part I General Provisions第一編 総則
Chapter I Common Provisions第一章 通則
Article 1第一条
Fundamental Principles（基本原則）
Article 1, paragraph (2)
The exercise of rights and performance of duties must be done in good faith.
権利の行使及び義務の履行は、信義に従い誠実に行わなければならない。
Article 1, paragraph (3)
Abuse of rights is not permitted.
権利の濫用は、これを許さない。
Article 2第二条
Standards for Construction（解釈の基準）
Article 2, paragraph (1)
This Code must be construed so as to honor the dignity of individuals and the essential equality of both sexes.
この法律は、個人の尊厳と両性の本質的平等を旨として、解釈しなければならない。