Supplementary Provisions, Article 10Transitional Measures Concerning Prescription
第十条（時効に関する経過措置）
With regard to the invocation of extinctive prescription of a claim in the case where the claim arose before the Effective Date (including the case where the claim arose on or after the Effective Date and the juridical act that is its cause was performed before the Effective Date; the same applies below), notwithstanding the provisions of Article 145 of the New Act, the provisions then in force continue to govern.
With regard to the effect of a circumstance for interruption of prescription prescribed in Article 147 of the Former Act or a circumstance for suspension of prescription prescribed in Articles 158 through 161 of the Former Act in the case where such a circumstance arose before the Effective Date, the provisions then in force continue to govern.
施行日前に旧法第百四十七条に規定する時効の中断の事由又は旧法第百五十八条から第百六十一条までに規定する時効の停止の事由が生じた場合におけるこれらの事由の効力については、なお従前の例による。
The provisions of Article 151 of the New Act do not apply to an agreement made in writing before the Effective Date to the effect that discussions concerning a right are to be held (including the case where the agreement was made by means of an electronic or magnetic record that records the content of the agreement (meaning an electronic or magnetic record prescribed in Article 151, paragraph (4) of the New Act; the same applies in Article 33, paragraph (2) of the Supplementary Provisions)).
新法第百五十一条の規定は、施行日前に権利についての協議を行う旨の合意が書面でされた場合（その合意の内容を記録した電磁的記録（新法第百五十一条第四項に規定する電磁的記録をいう。附則第三十三条第二項において同じ。）によってされた場合を含む。）におけるその合意については、適用しない。
With regard to the period of extinctive prescription of a claim in the case where the claim arose before the Effective Date, the provisions then in force continue to govern.
施行日前に債権が生じた場合におけるその債権の消滅時効の期間については、なお従前の例による。