In the case under paragraph (3) of the preceding Article, if a business operator employing the number of workers specified by Order of the Ministry of Health, Labour and Welfare or less has taken the measures specified by Order of the Ministry of Health, Labour and Welfare to secure safety or health of the workers employed for the business during any insurance year of three consecutive insurance years, and the business operator submits a written application stating the intention to apply for the application of the provision of this Article in respect of the industrial accident insurance rate pertaining to the business and other matters specified by Order of the Ministry of Health, Labour and Welfare within six months from the first day of the insurance year following any insurance year during which the measures were taken, then the provisions of the same paragraph apply to the industrial accident insurance rate prescribed in the same paragraph for the insurance year two years following the last insurance year of the consecutive three insurance years, by replacing the term "forty one-hundredth (40/100)" in the same paragraph with "forty-five one-hundredth (45/100)."

The amount of the Class I special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the persons deemed as entitled to receive the insurance benefit pursuant to the provision of Article 34, paragraph (1) of the Industrial Accident Insurance Act, by taking into consideration of the basic daily benefit amount set forth in item (iii) of the same paragraph and other circumstances, by the rate obtained by reducing from the rate identical to the industrial accident insurance rate prescribed by Article 12, paragraph (2) (if the rate has been increased or decreased pursuant to the same Article, paragraph (3), the increased or decreased rate) for the businesses pertaining to those persons, the rate prescribed by the Minister of Heath, Labour and Welfare by taking into consideration of the amount of the costs required for the benefit for second medical examination, etc. during the past three years in respect of all businesses to which the Industrial Accident Insurance Act is applied (hereinafter referred to as the "Class I special enrollment insurance premium rate").

①The amount of the Class II special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the persons deemed as entitled to be covered by the industrial accident insurance pursuant to the provision of Article 35, paragraph (1) of the Industrial Accident Insurance Act (referred to as the "insured person of Class II special enrollment" in the following paragraph), by taking into consideration of the basic daily benefit amount set forth in paragraph (1), item (vi) of the same Article and other circumstances, by the rate prescribed by the Minister of Health, Labour and Welfare by taking into consideration of the injury rate pertaining to occupational accidents, multiple-job-related accidents and commuting accidents for the businesses of the same type as or similar type to those set forth in Article 33, item (iii) of the Industrial Accident Insurance Act or the businesses conducting the works of the same type as or similar type to those set forth in item (v) of that Article (in case of the persons specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 35, paragraph (1) of the Industrial Accident Insurance Act, the injury rate pertaining to occupational accidents and multiple-job-related accidents for the business of the same or similar type or the business conducting those works of the same or similar type), the type and content of the services implemented as the services for promoting re-integration into society and other circumstances (hereinafter referred to as the "Class II special enrollment insurance premium rate").

②The Class II special enrollment insurance premium rate must be of the value that allows the maintenance of balanced finances pertaining to the industrial accident insurance services into the future, in light of the necessary costs of the payment of insurance proceeds pertaining to the insured person of Class II special enrollment and of the services for promoting re-integration into society.

①The amount of the Class III special enrollment insurance premiums is to be the amount obtained by multiplying the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare for the insured persons of Class III special enrollment, by taking into consideration of the basic daily benefit amount set forth in Article 34, paragraph (1), item (iii) of the Industrial Accident Insurance Act as applied mutatis mutandis pursuant to Article 36, paragraph (1), item (ii) of that Act and other circumstances, by the rate prescribed by the Minister of Health, Labour and Welfare by taking into consideration of the injury rate pertaining to occupational accidents, multiple-job-related accidents and commuting accidents for the businesses of the same type as or similar type to those in which the persons listed in Article 33, item (vi) or (vii) of the Industrial Accident Insurance Act are engaged and which are operated within the jurisdiction where this Act is effective, the type and content of the services implemented as the services for promoting re-integration into society and other circumstances (hereinafter referred to as the "Class III special enrollment insurance premium rate").

②The provisions of the preceding Article, paragraph (2) apply mutatis mutandis to the Class III special enrollment insurance premium rate. In this case, the term "the insured person of Class II special enrollment" in the same paragraph is deemed to be replaced with "the insured person of Class III special enrollment."

①Business operators must pay the following labor insurance premiums each insurance year, with a written declaration stating the amount of the labor insurance premiums and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 40 days from June 1 of the insurance year (in the case of the business in respect of which the insurance relation is established in the midst of an insurance year, within 50 days from the day on which the insurance relation is established (for Class I special enrollment insurance premiums pertaining to businesses which have obtained the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act in the midst of an insurance year and Class III special enrollment insurance premiums pertaining to businesses which have obtained the approval set forth in Article 36, paragraph (1) of the Industrial Accident Insurance Act in the midst of an insurance year, the day on which the approval is obtained, respectively)):

②For businesses with a definite term, notwithstanding the provision of the preceding paragraph, the business operator must pay the following labor insurance premiums, together with a written declaration stating the amount of the labor insurance premiums and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 20 days from the day on which the insurance relation is established (in the case of Class I special enrollment insurance premiums pertaining to a business for which the approval set forth in Article 34, paragraph (1) of the Industrial Accident Insurance Act is obtained on and after the day following the day on which the insurance relation is established, the day on which the approval is obtained).

③If the business operator fails to submit the written declaration set forth in the preceding two paragraphs, or the government finds that there are errors in the entries in the written declaration, the government determines the amount of the labor insurance premiums and give notice thereof to the business operator.

④A business operator who has received the notice pursuant to the provisions of the preceding paragraph, if the amount of the labor insurance premiums paid is in short of the labor insurance premiums determined by the government, must pay for the shortfall, or if no labor insurance premiums have been paid, must pay the labor insurance premiums determined by the government, within 15 days from the day on which the notice is received.

If the prospective amount of the total amount of wages prescribed by paragraph (1) or (2) of the preceding Article, the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 13, the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14, paragraph (1), or the prospective amount of the total of the amounts specified by Order of the Ministry of Health, Labour and Welfare set forth in Article 14-2, paragraph (1), increases and the requirements specified by Order of the Ministry of Health, Labour and Welfare are met, the employer must pay the difference between the amount of the labor insurance premiums based on the increased prospective amount and the amount of the labor insurance premiums already paid, with the written declaration stating the amount of the difference and other matters specified by Order of the Ministry of Health, Labour and Welfare, within 30 days from that date.

①If the government increases the general insurance premium rate, the Class I special enrollment insurance premium rate, the Class II special enrollment insurance premium rate, or the Class III special enrollment insurance premium rate, it additionally collects the relevant labor insurance premiums.

②When the government additionally collects labor insurance premiums pursuant to the provisions of the preceding paragraph, it must notify the business operators of the amount of the labor insurance premiums payable by each business operator by designating the payment due date pursuant to the provisions of Order of the Ministry of Health, Labour and Welfare.

Pursuant to the provisions of Order of the Ministry of Health, Labour and Welfare, the government, at the request of the employer, may allow delayed payment of the labor insurance premiums payable by the employer pursuant to the provisions of Article 15 through the preceding Article.