The commission is authorized and directed to adopt regulations for certification of contractors, inspectors, management planners, project designers, air monitors, supervisors and workers. The regulations shall include an accreditation plan which shall be equivalent to paragraphs 1 through 3 of the Model Plan. The accreditation plan shall be no more stringent than the Model Plan, except as provided herein. The regulations and accreditation plan shall include the requirements for all training courses for accreditation of contractors, inspectors, management planners, project designers, air monitors, supervisors and workers. All regulations promulgated by the commission pursuant to this chapter shall not be effective until November 1, 1990. By October 1, 1989, the Board of Trustees of State Institutions of Higher Learning shall designate a university which may offer all training courses set forth in the regulations and accreditation plan and such university may charge reasonable fees to offset costs of the courses offered. The commission shall not approve any training courses offered in Mississippi other than those courses offered at the designated university and those certified abatement worker courses that have received Environmental Protection Agency approval pursuant to Section III of Appendix C to Title 40, Part 763, Subpart E, of the Code of Federal Regulations.