Me. Rev. Stat. tit. 36, § 312

After July 1, 1980, a person is not eligible to perform the duties of a chief assessor of a primary assessing area or the duties of a professional assessor of any municipality or primary assessing area unless that person is certified in the manner provided in this subchapter. Violation of this section is a civil violation for which a fine of not less than $100 nor more than $250 must be adjudged.