Sec. 6.

(1) Application for registration as a building official, plan reviewer, or inspector shall be made to the appropriate board listed in section 4(2) and to the commission along with the fee prescribed in section 13.

(2) Any person who on the effective date of this act has been engaged in the business of a building official, plan reviewer, or inspector for a period of 3 years shall, upon furnishing the appropriate board listed in section 4(2) with satisfactory evidence of having been so engaged, be registered if the person makes application to the commission within 6 months after the effective date of this act, and pays the fee prescribed in section 13.

(3) Any person who, on the effective date of this act, has been engaged in the business of a building official, plan reviewer, or inspector for a period of less than 3 years shall, upon furnishing the board with satisfactory evidence of having been so engaged, be provisionally registered if the person makes application to the commission within 6 months after the effective date of this act and pays the fee prescribed in section 13.

(4) Any person who, on the effective date of this act, has been engaged in the business of a building official, plan reviewer, or inspector for 3 of the 5 years immediately preceding the date of application shall, upon furnishing the appropriate board listed in section 4(2) with satisfactory evidence of having been so engaged, be registered, if the person makes application to the commission and pays the fee prescribed in section 13.

(5) The commission may issue an initial registration for a period of more or less than 3 years for the purpose of allowing subsequent registration renewal to coincide with the code change cycle.