Pennsylvania Statutes Title 77 P.S. Workers' Compensation § 1035.5. Rate filings

(a) Each authorized insurer shall file with the commissioner all rates and supplementary rate information and all changes and amendments thereof made by it for use in this Commonwealth by the date they become effective. Each rating organization shall file with the commissioner a filing for the provision for claim payment and such other filings as are authorized pursuant to this article. The Secretary of Labor and Industry shall be a member of the board of directors or governing body of any rating organization.

(b) An insurer may not make or issue a contract or policy of insurance of the kind to which this article applies, except in accordance with the filings which are in effect for the insurer as provided in this article.