(1) A document is filed when it is received by the commissioner.
(2) The commissioner shall keep a register of all applications for registration and registration statements which are or have ever been declared effective under this part and all denial, suspension, or revocation orders which have ever been entered under this part. The register shall be open for public inspection during the commissioner's normal business hours.
(3) The information contained in or filed with any registration statement, application, notice filing, or report may be made available to the public under such rules as the commissioner prescribes.
(4) Upon request and upon payment of such reasonable charges as the commissioner by rule prescribes, the commissioner shall furnish to any person copies (certified under the commissioner's seal of office if requested) of any entry in the register or any document which is a matter of public record. In any proceeding or prosecution under this part, any copy so certified is prima facie evidence of the contents of the entry or document certified.
(5) The commissioner, in the commissioner's discretion, may honor requests from interested persons for interpretative opinions pertaining to this part.