Code of Massachusetts Regulations
522 CMR - BOARD OF BOILER RULES
Title 522 CMR 7.00 - Air Tanks
Section 7.01 - Scope

Universal Citation: 522 MA Code of Regs 522.7

Current through Register 1531, September 27, 2024

In accordance with the provisions of M.G.L. c. 146, § 2, the Board adopts by reference the 2019 ASME Boiler and Pressure Vessel Code Section VIII, Rules for Construction of Pressure Vessels.

(1)522 CMR 7.00 shall apply to all Air Tanks enumerated in M.G.L. c. 146, § 34, including:

Air Tanks that meet the following criteria:

(a) design MAWP greater than 50 PSI;

(b) greater than six inches internal diameter; and

(c) internal volume greater than one cubic foot.

Note : The exemption of Air Tanks containing less than one cubic foot of air applies to each single vessel and not to an assembly of vessels.

(2)522 CMR 7.00 shall not apply to the exceptions enumerated in M.G.L. c. 146, § 34, including the following:

(a) Air Tanks subject to Federal control.

(b) Air Tanks attached to locomotives, street cars, railway cars, trackless trolley vehicles, or to motor vehicles for use in operating such vehicles or their brakes or body lifting apparatus.

(c) Air Tanks in which air is used solely for cushioning systems containing water or other liquids.

(d) Air Tanks containing air and liquids in which the pressure is maintained by pumps; for example, hydraulic elevator tanks.

(e) An Air Tank or other receptacle used by divers if such Air Tank or other receptacle is inspected by the refilling agency.

(f) Portable tanks and bottles containing compressed air as used for breathing purposes while combating fires or used in rescue operations in contaminated areas; and storage tanks and mechanical filling systems used to fill such portable tanks and bottles.

(g) Air Tanks used in and as part of electrical substations owned and operated by an electric company, as defined M.G.L. c. 164, § 1.

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