02-041-21 Me. Code R. § 14
Whenever a portable boiler is installed for temporary use, an external inspection must be completed within 72 hours, provided the portable boiler has a current, valid inspection certificate issued by the State of Maine. If the portable boiler does not have a current, valid inspection certificate, a certificate inspection is required prior to operation. The owner of the boiler shall arrange for the required inspections to be conducted.
Note: It is recommended that the owner of portable boilers which may be rented out to facilities located in the State of Maine have the boilers inspected by an Authorized Inspector licensed by the State of Maine as required so the boilers have a current valid certificate on a continuous basis. This will expedite the installation of a portable boiler and reduce the likelihood of the boiler being shutdown to complete the internal inspection prior to continued operation at a site.
02-041 C.M.R. ch. 21, § 14