During such time as the Commissioner has contracted or entered into cooperative agreements pursuant to his or her authority under Code Section 8-2-132, the Commissioner may make, amend, alter, and repeal general rules and regulations of procedure to carry into effect this part, to obtain statistical data concerning manufactured homes, and to prescribe means, methods, and practices to make this part effective. The Commissioner may also make such investigations and inspections as in his or her judgment are necessary to enforce and administer this part.