①If an insured day worker had been employed in a covered undertaking by the same employer for 18 days or more in each of two months and was separated from service in or after the following month, the two months may be calculated as two months of the insured period under the provisions of Article 14; provided, however, that this does not apply when the provisions of Article 43, paragraph (2) or (3) have been applied to the worker.

②In calculating the daily amount of wages prescribed in Article 17 for a person who has obtained recipient qualification, recipient qualification for the elderly, or special recipient qualification prescribed in Article 14, paragraph (2), item (i) by calculating the two months prescribed in the preceding paragraph as the insured period pursuant to the provisions of the same paragraph, the amount obtained by dividing the amount of the stamp premiums paid in each of those two months by the rate specified by Order of the Ministry of Health, Labour and Welfare is deemed to be the amount of wages paid each month.

③The provisions of paragraph (1) apply mutatis mutandis to the calculation of the basic period for calculation under the provisions of Article 22, paragraph (3). In this case, the term "the two months may be calculated as two months of the insured period under the provisions of Article 14" in paragraph (1) is deemed to be replaced with "the period employed may be calculated as a period falling under the period in which the person was employed as an insured person in a covered undertaking by the same employer continuously until the basis day prescribed in Article 22, paragraph (3)."