The provider fee schedules as adopted by the single state agency through recommendations by each board become effective on January 1, 1992: Provided, That those fee schedules based upon fees that require prior approval of the health care financing administration are effective on the effective date approved by the health care financing administration: Provided, however, That for those fees subject to an established Medicare upper limit, the effective date is the first day of the month immediately succeeding the date the fees can be raised sufficiently to comply with section ten of this article.