Section 041-12-3 - Registration NumbersA.Display; Not Transferable. The assigned State of Maine registration number must appear on each power boiler at all times. The registration number assigned to a power boiler may not be transferred to another boiler.B.High Pressure Numbers. Before any power boiler may be operated in this State, the assigned State of Maine registration number preceded by the letters "ME" must be stamped on the power boiler with the numbers and letters not less than 3/8 of an inch in height. The stamp must appear in the vicinity of the manufacturer's code stamping.02-041 C.M.R. ch. 12, § 3