The commission upon its own initiative may, and upon the request of any individual to which this act applies shall, render an opinion in writing on questions concerning the interpretation of this act. Any person who acts in accordance with the provisions of such an opinion, shall be presumed to have complied with the provisions of this act. A copy of every opinion rendered by the commission shall be filed with the secretary of state, and any opinion so filed shall be open to public inspection. The secretary of state shall publish all opinions rendered under this section monthly and each such publication shall be cumulative. Copies of each opinion shall be filed with the secretary of the senate and the chief clerk of the house on the same date as the same are filed with the secretary of state. The secretary of state shall cause adequate copies of all filings under this section to be supplied to the state library.