Supplementary Provisions, Article 9-4-2Special Provisions on the Insured Period as a Category 3 Insured Person
第九条の四の二（第三号被保険者としての被保険者期間の特例）
An insured person or a person who was an insured person may give a notification to the Minister of Health, Labour and Welfare concerning the period, among the insured periods as a category 3 insured person (limited to a premium-paid period (excluding a period specified by Cabinet Order) falling within the period from April 1986 until the month preceding the month that includes the day of enforcement of the provisions listed in Article 1, item (ii) of the Supplementary Provisions of the Act Partially Amending the Employees' Pension Insurance Act, etc. for Ensuring the Soundness and Reliability of the Public Pension System (Act No. 63 of 2013; referred to in paragraph (1) of the following Article as the "2013 Amendment Act") (hereinafter referred to as the "partial effective date of the 2013 Amendment Act")), for which a correction has been made, under the provisions of Article 14, to matters recorded as an insured period as a category 1 insured person (referred to in Article 9-4-6, paragraphs (1) and (2) of the Supplementary Provisions as the "inconsistent period"), and for which the right to collect premiums has, at the time that correction was made, been extinguished by prescription (hereinafter referred to as the "time-barred inconsistent period").
被保険者又は被保険者であつた者は、第三号被保険者としての被保険者期間（昭和六十一年四月から公的年金制度の健全性及び信頼性の確保のための厚生年金保険法等の一部を改正する法律（平成二十五年法律第六十三号。次条第一項において「平成二十五年改正法」という。）附則第一条第二号に掲げる規定の施行の日（以下「平成二十五年改正法一部施行日」という。）の属する月の前月までの間にある保険料納付済期間（政令で定める期間を除く。）に限る。）のうち、第一号被保険者としての被保険者期間として第十四条の規定により記録した事項の訂正がなされた期間（附則第九条の四の六第一項及び第二項において「不整合期間」という。）であつて、当該訂正がなされたときにおいて保険料を徴収する権利が時効によつて消滅しているもの（以下「時効消滅不整合期間」という。）について、厚生労働大臣に届出をすることができる。
Where a notification is given under the provisions of the preceding paragraph, the time-barred inconsistent period to which that notification relates (referred to in paragraph (4) and in paragraph (1) of the following Article as the "specified period") is, for the purpose of applying the provisions of this Act and any other laws and regulations specified by Cabinet Order, deemed, from and after the day on which that notification was given, to be a period relating to premiums that are treated as not required to be paid under the provisions of Article 90-3, paragraph (1), and matters necessary in relation to the application of these provisions are specified by Cabinet Order.
Where payment of premiums is made under the provisions of paragraph (1) of the following Article or any other provision specified by Cabinet Order, the provisions of the preceding paragraph do not apply, from and after the day on which the payment was made, to the month to which that payment relates.
For the purpose of applying the provisions of Article 18 of the Supplementary Provisions of the 1985 Amendment Act to a person who has a specified period, the phrase "the insured period of the National Pension on and after that day" in paragraph (1) of that Article is deemed to be replaced with "the period deemed, on and after that day, under the provisions of Article 9-4-2, paragraph (2) of the Supplementary Provisions of that Act, to be a period relating to premiums that are treated as not required to be paid under the provisions of Article 90-3, paragraph (1) of that Act".
特定期間を有する者に対する昭和六十年改正法附則第十八条の規定の適用については、同条第一項中「同日以後の国民年金の被保険者期間」とあるのは、「同日以後に同法附則第九条の四の二第二項の規定により同法第九十条の三第一項の規定により納付することを要しないものとされた保険料に係る期間とみなされた期間」とする。