All heating, chimney and/or fireplace equipment installed, as well as any accessory equipment installed, must be listed and approved by Underwriters' Laboratories or by a nationally-accredited testing laboratory with certification that applicable national and Maine standards have been met. Such listing must be in effect at time of installation. All equipment must be continually listed by a nationally-accredited testing laboratory. See Appendix D.
02-658 C.M.R. ch. 111, § 1