一"new National Pension Act" means the National Pension Act as amended by Article 1;

二"former National Pension Act" means the National Pension Act prior to amendment by Article 1;

三"New Employees' Pension Insurance Act" means the Employees' Pension Insurance Act as amended by Article 3;

四"Former Employees' Pension Insurance Act" means the Employees' Pension Insurance Act prior to amendment by Article 3;

五"new Mariners Insurance Act" means the Mariners Insurance Act as amended by Article 5;

六"Former Mariners Insurance Act" means the Mariners Insurance Act prior to amendment by Article 5;

七"former Pension Aggregation General Rules Act" means the Act on General Rules for Aggregated Pensions prior to its repeal pursuant to the provisions of Article 2, paragraph (1) of the Supplementary Provisions;

八"Former Coordination Act" means the Act on Coordination between Employees' Pension Insurance and Mariners Insurance prior to its repeal pursuant to the provisions of Article 2, paragraph (1) of the Supplementary Provisions;

九"premium-paid period", "premium-exemption period", "the government and implementing organizations", "mutual aid Associations, etc. as implementing organizations", "category 1 insured person", "category 2 insured person" or "credited period" means, respectively, the premium-paid period, premium-exemption period, the government and implementing organizations, mutual aid Associations, etc. as implementing organizations, category 1 insured person, category 2 insured person or credited period prescribed in Article 5, paragraph (1), paragraph (2), paragraph (8) or paragraph (9) or Article 7, paragraph (1), item (i) or item (ii) of the National Pension Act, or in Article 9, paragraph (1) of the Supplementary Provisions of that Act;

十"class 1 insured person" means a male insured under the Employees' Pension Insurance Act (limited to a category I EPI insured prescribed in Article 2-5, paragraph (1), item (i) of that Act (hereinafter referred to as a "category I EPI insured")) other than a class 3 insured person, a class 4 insured person and a voluntarily continued mariner insured person;

十一"class 2 insured person" means a female insured under the Employees' Pension Insurance Act (limited to a category I EPI insured) other than a class 3 insured person, a class 4 insured person and a voluntarily continued mariner insured person;

十二"class 3 insured person" means an insured under the Employees' Pension Insurance Act (limited to a category I EPI insured) who is employed at a workplace of a business prescribed in Article 4 of the Mining Act (Act No. 289 of 1950) and is regularly engaged in underground work, or an insured under the Employees' Pension Insurance Act (limited to a category I EPI insured) who is employed, as a mariner prescribed in Article 1 of the Mariners Act (Act No. 100 of 1947), on a ship prescribed in Article 6, paragraph (1), item (iii) of the Employees' Pension Insurance Act, other than a class 4 insured person and a voluntarily continued mariner insured person;

十三"class 4 insured person" means a person who has become an insured under the Employees' Pension Insurance Act pursuant to the provisions of Article 15, paragraph (1) of the Former Employees' Pension Insurance Act that remain in force pursuant to the provisions of Article 43, paragraph (1) of the Supplementary Provisions, and a person who has become an insured under the Employees' Pension Insurance Act pursuant to the provisions of Article 43, paragraph (2) or (5) of the Supplementary Provisions;

十四"voluntarily continued mariner insured person" means a person who has become an insured under the Employees' Pension Insurance Act pursuant to the provisions of Article 44, paragraph (1) of the Supplementary Provisions;

十五"period for aggregation" means the period for aggregation prescribed in the former Pension Aggregation General Rules Act, and periods included in that period for aggregation and periods deemed to be that period for aggregation pursuant to the provisions of laws and regulations;

十六"price index" means the national consumer price index prepared by the Management and Coordination Agency or the national consumer price index prepared by the Prime Minister's Office;

十七"old-age basic pension", "basic disability pension" or "basic pension for surviving family" means, respectively, the old-age basic pension, basic disability pension or basic pension for surviving family under the National Pension Act;

十八"employees' old-age pension", "employees' disability pension" or "employees' pension for surviving family" means, respectively, the employees' old-age pension, employees' disability pension or employees' pension for surviving family under the Employees' Pension Insurance Act;

十九"retirement mutual aid pension", "disability mutual aid pension" or "survivors' mutual aid pension" means, respectively, the retirement mutual aid pension, disability mutual aid pension or survivors' mutual aid pension under the provisions concerning long-term benefits of the National Public Officers Mutual Aid Association Act (Act No. 128 of 1958) prior to amendment by Article 2 of the Act Partially Amending the Employees' Pension Insurance Act, etc. to Unify, etc. the Employees' Pension Systems (Act No. 63 of 2012; hereinafter referred to as the "2012 Pension Unification Act") and other provisions of Acts that remain in force pursuant to the provisions of Article 37, paragraph (1) of the Supplementary Provisions of the 2012 Pension Unification Act, under the provisions concerning long-term benefits of the Local Public Officers, etc. Mutual Aid Association Act (Act No. 152 of 1962) prior to amendment by Article 3 of the 2012 Pension Unification Act and other provisions of Acts that remain in force pursuant to the provisions of Article 61, paragraph (1) of the Supplementary Provisions of the 2012 Pension Unification Act, or under the provisions concerning long-term benefits of the Private School Personnel Mutual Aid Association Act (Act No. 245 of 1953) prior to amendment by Article 4 of the 2012 Pension Unification Act and other provisions of Acts that remain in force pursuant to the provisions of Article 79 of the Supplementary Provisions of the 2012 Pension Unification Act.