If the amount arrived at when the total amount of remuneration an insured has received during a continuous period of three months at the place of business at which the insured is employed at the time in question (the number of days forming the basis for the payment of remuneration is seventeen days or more in each month) is divided by three is significantly higher or lower than the amount of monthly remuneration that formed the basis for the standard monthly remuneration and the implementing organization finds it to be necessary to do so, it may regard the amount so calculated as the amount of monthly remuneration and revise the amount of standardized remuneration beginning in the month following the month in which that significant high or low occurred.
A standard monthly remuneration that has been revised in accordance with the provisions of the preceding paragraph is the standard monthly remuneration for each month up until August of that year (or up until August of the following year, for standard monthly remuneration revised in any month from July to December).
前項の規定によつて改定された標準報酬月額は、その年の八月（七月から十二月までのいずれかの月から改定されたものについては、翌年の八月）までの各月の標準報酬月額とする。
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If the amount arrived at when the total amount of remuneration an insured has received during a continuous period of three months at the place of business at which the insured is employed at the time…
実施機関は、被保険者が現に使用される事業所において継続した三月間（各月とも、報酬支払の基礎となつた日数が、十七日以上でなければならない。）に受けた報酬の総額を三で除して得た額が、その者の標準報酬月額の基礎となつた報酬月額に比べて、著しく高低を生じた場合において、必要があると認めるときは、その額を報酬月額として…
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「実施機関」
The body that runs the employees' pension insurance business for each group of insureds, as Article 2-5, paragraph (1) assigns it: the Minister of Health, Labour and Welfare for category I EPI insureds; National Public Servants Mutual Aid Associations and their Federation for category II; mutual aid associations of local government officials, the National Federation of Mutual Aid Associations for Municipal Personnel and the Pension Fund Association for Local Government Officials for category III; and the Promotion and Mutual Aid Corporation for Private Schools of Japan for category IV.
Defined inArticle 2-5, paragraph (1)· applies throughout the law
remuneration
「報酬」
Wages, salary, pay, allowances, bonuses and anything else, whatever it is called, that a worker receives in return for their work — other than what is received only occasionally and what is received at intervals longer than three months.
Defined inArticle 3, paragraph (1), item (iii)· applies throughout the law
place of business
「事業所」
Short for a place of business or an office (事業所又は事務所).
Short name set inArticle 6, paragraph (1)