02-385-110 Me. Code R. § 1-7
Except as provided for relocated homes under Subchapter 3, Section 17(5), revisions to the codes and standards incorporated by reference into Subchapter 2 of this chapter may not apply retroactively to approved building systems. The Board shall notify all manufacturers with approved building systems, local governmental jurisdictions, and other concerned persons of all amendments to the codes and standards included in Subchapter 2, and each manufacturer will have one hundred eighty (180) calendar days or such additional time as the Board deems reasonable, following the sending of such notification to submit verification of compliance in the form of copies of the approved building systems to the Board and comply with such modifications of its building systems as may be required to comply with such changes. All State-certified modular homes manufactured (i) prior to the effective date of such changes, or (ii) during the one hundred eighty (180) calendar day period following the sending of notice to the manufacturer, or (iii) in the case of any manufacturer who submits their modifications to the Board as required but receives no affirmative or negative response from the Board with respect thereto, following such one hundred eighty (180) calendar day period, may be certified if they conform to the existing approved building system. Where imminent danger to life safety is involved, the Board may require that immediate effect be given to amendments to the codes, standards, specifications, and requirements adopted herein. For purposes of this section, a State-certified modular home is deemed to be manufactured at such date as the manufacturer's label is attached to it in accordance with the approved compliance assurance program.
02-385 C.M.R. ch. 110, § 1-7