02-039-410 Me. Code R. § 18
A licensee shall keep informed of any federal, state or local laws, rules, regulations or ordinances concerning known hazardous materials that may impact negatively upon the health and well being of buyers and sellers.
A listing licensee, and a licensee in transactions when the property is not listed with a real estate brokerage agency, shall disclose, in writing, whether the seller makes any representations regarding current or previously existing known hazardous materials on or in the real estate. In addition, the licensee shall give a written statement to the buyer encouraging the buyer to seek information from professionals regarding any specific hazardous material issue or concern. Such written representation and statement shall be conveyed to a buyer prior to or during the preparation of an offer.
A licensee listing a single-family residential property, a multifamily property, a commercial property with a residential component and a licensee in such transactions when the property is not listed with a real estate brokerage agency, shall ask the seller whether the seller has any knowledge of current or previously existing asbestos, radon, lead based paint, and underground storage tanks. Such information and any other information pertinent to hazardous materials shall be conveyed, in writing, to a buyer prior to or during preparation of an offer. The fact that information regarding hazardous materials is not available shall also be conveyed, in writing, when such is the case.
02-039 C.M.R. ch. 410, § 18