Title VI, SEC. 6112. NO LIABILITY FOR FAMILIES EMPLOYED FULL-TIME; REDUCTION IN LIABILITY FOR PART-TIME EMPLOYMENT. (a) In General. The amount of any liability under section 6111 shall be reduced, in accordance with rules established by the National Health Board consistent with this section, based on employer premiums payable, under section 6121, with respect to the employment of a family member who is a qualifying employee or with respect to a family member. In no case shall the reduction under this section result in any payment owing to a family. (b) Credit for Full-Time and Part-Time Employment. (1) In general. Under such rules, in the case of a family enrolled under a class of family enrollment, if a family member is a qualifying employee for a month and the employer is liable for payment under section 6121 based on such employment (A) Full-time employment credit. If the employment is on a full-time basis (as defined in section 1902(b)(2)) the liability under section 6111 shall be reduced by the credit amount described in subparagraph (C). (B) Part-time employment credit. If the employment is on a part-time basis (as defined in section 6121(d)) the liability under section 6111 shall be reduced by the employment ratio (as defined in section 6121(d)) of the credit amount described in subparagraph (C). (C) Full-time monthly credit. The amount of the credit under this subparagraph, with respect to employment by an employer in a month, is \1/12\ (or, if applicable, the fraction described in paragraph (2)) the amount owed under section 6111, based on the class of enrollment, for the year. (2) Coverage during only part of a year. In the case of a family that is not enrolled in a regional alliance health plan for all the months in a year, the fraction described in this paragraph is 1 divided by the number of months in the year in which the family was enrolled in such a plan. (3) Aggregation of credits. (A) Individuals. In the case of an individual who is a qualifying employee of more than one employer in a month, the credit for the month shall equal the sum of the credits earned with respect to employment by each employer. Such sum may exceed the credit amount described in paragraph (1)(C). (B) Couples. In the case of a couple each spouse of which is a qualifying employee in a month, the credit for the month shall equal the sum of the credits earned with respect to employment by each spouse. Such sum may exceed the credit amount described in paragraph (1)(C). (c) Treatment of Change of Enrollment Status. In the case of a family for which the class of family enrollment changes during a year, the Board shall establish rules for appropriate conversion and allocation of the credit amounts under the previous provisions of this section in a manner that reflects the relative values of the base employment monthly premiums (as determined under section 6122) among the different classes of family enrollment.