The board shall:
1. Enforce this chapter.
2. Adopt rules not inconsistent with this chapter for the examination, regulation, and licensing of sewer and water contractors and sewer and water installers.
3. Exempt from the provisions of sections 43-18.2-06, 43-18.2-07, and 43-18.2-08 those North Dakota sewer and water contractors and installers as defined in section 43-18.2-01 who have at least one year's work experience prior to July 1, 1987.