The LRRA exempts purchasing groups and their insurers from certain state laws which are specified therein. Section 5907 of the Insurance Law codifies those exemptions into New York law. All other provisions of New York law, and the rules and regulations promulgated thereunder, are applicable to a purchasing group doing business in this State, its members and its representatives, insurers writing policies for such purchasing groups, and any other person, firm, association or corporation acting in connection with the placement of liability insurance for a purchasing group or a member of such purchasing group.