It shall be the duty of the executive director to administer this chapter; and the executive director shall have the power and authority to adopt, amend or rescind such rules and regulations, to employ such persons, make such expenditures, require such reports, make such investigations, and take such other action as he deems necessary or suitable to that end. Such rules and regulations shall be effective upon publication in the manner, not inconsistent with the provisions of this chapter, which the executive director shall prescribe. The executive director shall determine the department’s own organization and methods of procedure in accordance with the provisions of this chapter, and shall have an official seal which shall be judicially noticed. Not later than the first day of February in each year, the executive director shall submit to the Governor a report covering the administration and operation of this chapter during the preceding fiscal year and shall make such recommendations for amendments to this chapter as the executive director deems proper. Whenever the executive director believes that a change in contribution or benefit rates will become necessary to protect the solvency of the fund, he shall promptly so inform the Governor and the Legislature, and make recommendations with respect thereto.