Maryland Code, Public Safety § 12-914

(1) give notice to and obtain approval from the Chief Boiler Inspector, a deputy boiler inspector, or a special inspector before beginning a repair or alteration that:

(2) repair the boiler or pressure vessel in accordance with regulations adopted under this subtitle; and

(3) provide reports, as required by regulations adopted under this subtitle, to the Chief Boiler Inspector and the owner of the boiler or pressure vessel.