OSIA membership is an annual membership that runs from May 1 to April 30 of the following year. There are two categories of membership available: REGULAR MEMBERS.....Any person, firm or corporation, being a currently certified self-insurer under the provisions of the Oregon Workers' Compensation Law or any large self-assumed program (large-deductible insureds) shall be eligible for membership in this corporation as a Regular Member. Each member organization shall be entitled to one vote on any issue or matter submitted to or required to be submitted to a vote of the membership. ASSOCIATE MEMBERS....Any person, firm, organization, corporation or other entity specifically in business to provide a service in connection with workers' compensation matters for self-insured employers shall be an Associate Member. Associate Members shall not be entitled to vote or hold office in the corporation except for the office of Associate Member Representative which shall have full voting privileges.