(a) Every insurer, rating organization or advisory organization and every group, association or other organization of insurers which engages in joint underwriting or joint reinsurance shall maintain reasonable records, of the type and kind reasonably adapted to its method of operation, of its experience or the experience of its members and of the data, statistics or information collected or used by it in connection with the rates, rating plans, rating systems, underwriting rules, policy or bond forms, surveys or inspections made or used by it so that such records will be available at all reasonable times to enable the Insurance Commissioner to determine whether such organization, insurer, group or association, and, in the case of an insurer or rating organization, every rate, rating plan or rating system made or used by it, complies with the provisions of sections 38a-663 to 38a-696, inclusive, applicable to it. The maintenance of such records in the office of a licensed rating organization or advisory organization of which an insurer is a member or subscriber will be sufficient compliance with this section for any insurer maintaining membership or subscribership in such organization, to the extent that the insurer uses the rates, rating plans, rating systems or recommendations of such organization.

(b) The Insurance Commissioner shall approve reasonable rules and statistical plans, reasonably adapted to each of the rating systems used, and which shall thereafter be used by each admitted insurer in the recording and reporting of its loss and country-wide expense experience, in order that the experience of all insurers may be made available at least annually. Such rules and plans may also provide for the recording and reporting of expense experience items which are specially applicable to this state and are not susceptible of determination by a prorating of country-wide expense experience. In approving such rules and plans, the commissioner shall give due consideration to the rating systems in use in this state and in other states. No insurer shall be required to record or report its loss experience on a classification basis that is inconsistent with the rating system used by it, except that with respect to private passenger nonfleet automobile insurance, the commissioner may require that claims and loss experience data be allocated, compiled and reported by town. The commissioner may designate one or more rating organizations or other agencies to assist him in gathering such experience and making compilations thereof, and such compilations shall be made available, subject to reasonable rules promulgated by the commissioner, to insurers and rating organizations.