(a) The Governor may, by proclamation or execution order, designate an agency or agencies to establish rules and regulations as may be necessary under this chapter. In lieu of such proclamation or executive order, each agency concerned shall adopt such rules and regulations to assure:
(1) That the payments and assistance authorized by this chapter shall be administered in a manner which is fair and reasonable and as uniform as practicable;
(2) That a displaced person who makes proper application for a payment authorized for such person by this chapter shall be paid promptly after a move or, in hardship cases, paid in advance; and
(3) That any person aggrieved by a determination as to eligibility for a payment authorized by this chapter or the amount of payment may have the application reviewed by the head of the agency.
(b) The agency may prescribe such other regulations and procedures as it deems necessary or appropriate to carry out this chapter.
(c) If a project cannot proceed to actual construction because comparable replacement sale or rental housing is not available, the agency may take action as necessary or appropriate to provide such housing by use of funds authorized for such project.
(d) In order to encourage and facilitate the construction or rehabilitation of housing to meet the needs of displaced persons who are displaced from dwellings because of any project or program, the agency may take actions as necessary or appropriate to utilize federal loans for planning and preliminary expenses for additional housing as provided under 42 U.S.C. § 4635.