522 CMR 2.06 - Inspection

In accordance with the provisions of M.G.L. c. 146, § 2, the Board adopts the 2019 NBIC Part 2.

(1) Application. Whoever owns or uses or causes to be used a High Pressure/Power Boiler that comes within the scope of M.G.L. c. 146, § 6, shall make application for inspection prior to installation and operation to the Chief in a format approved by the Department.
(2) Field Inspection. All High Pressure/Power Boilers shall be thoroughly inspected internally and externally while under pressure at least once annually in accordance with the 2015 NBIC. The annual external inspection shall be within six months after the annual internal inspection. A District Engineering Inspector shall perform the First Inspection as required by M.G.L. c. 146, § 6. Subsequent annual inspections shall be performed by a District Engineering Inspector or an Authorized Inspector. A thorough Internal Inspection requires the following:
(a) Each space including, but not limited to, fireside and waterside spaces provided with a handhole, manhole, or other points of access such as doorways and openings into fireside and waterside spaces shall be opened and cleaned for a visual inspection.
(b) Pre-inspection and post-inspection activities as provided for in the 2015 NBIC shall be performed.
(3) Certificate to Be Posted.
(a) The Department shall issue to the Owner/User of a Boiler compliant with 522 CMR a Certificate, on the condition that the appropriate fees have been paid. The Certificate shall be protected from dirt, moisture, and contamination and shall be posted in a conspicuous place near where the Boiler specified therein is located and shall be kept with said Boiler and shall be always accessible to the District Engineering Inspector or Authorized Inspector.
(b) The Certificate shall include the name of the insurance company, the National Board number, the Mass Tag number, the name of the manufacturer, the name of the Owner/User, the location, size and number of the Boiler, the date of inspection and the maximum pressure at which it may be operated, with the signature of the inspector, and shall contain such extracts from the statutes as shall be deemed necessary by the board.
(c) The Certificate shall remain posted while the Certificate is in force, unless a District Engineering Inspector or an Authorized Inspector deems the Boiler or its Appurtenances unsafe or dangerous. If a Boiler is determined to be unsafe or dangerous, the District Engineering Inspector or Authorized Inspector shall remove the Certificate, and submit such certificate to the Chief, and the Boiler or Pressure Vessel shall not be operated until such time that a valid Certificate is re-issued.
(4) Preparation of Inspection. The Boiler shall be prepared for inspection in accordance with the NBIC. The Engineer in Charge is responsible to ensure the Boiler is properly prepared for inspection.
(5) Inspection Reporting. Pursuant to M.G.L. c. 146, § 10, whoever owns, or uses or causes to be used, any Power Boiler shall report in writing to the Chief the location of such Boiler, before the work of installation of such Boiler, and annually thereafter; provided, that the Owner/User of an insured Boiler shall report immediately in writing to the Chief whenever the insurance company ceases for any cause to inspect the Boiler.
(6) Reporting by Insurance Companies.
(a) Pursuant to M.G.L. c. 146, § 18, every insurance company shall forward to the Chief, within 14 days after each inspection, reports of all Boilers inspected by the Authorized Inspectors. Such reports shall be made on a form and submitted in a format approved by the Chief and shall contain all orders made by the company regarding such Boilers.
(b) All insurance companies shall notify the Chief, within 14 days, on a form and submitted in a format approved by the Chief, of all Boiler new business or discontinuation of business. All insurance companies shall report immediately to the Chief in writing the name of the Owner/User and the location of every Boiler required to be inspected by M.G.L. c. 146, § 19, upon which they have cancelled or refused insurance, giving the reasons therefor.
(c) The Authorized Inspector shall notify the Chief or his or her designee immediately in writing if the Authorized Inspector finds that an unsafe and dangerous condition exists resulting in the removal of the Certificate.
(7) Boiler Horsepower.
(a) Pursuant to M.G.L. c.146, § 48, when liquid or gaseous fuel, electric or atomic energy or any other source of heat is used, the horsepower of a Boiler shall be determined by either the manufacturer's factory tag affixed to the Boiler or burner denoting horsepower, or calculated by one of the following formulae: the steam output capacity as listed on the manufacturer's tag divided by 34.5, the BTU/hr input listed on the manufacturer's tag divided by 41,840 or the BTU/hr output listed on the manufacturer's tag divided by 33,475.
(b) If a tag is missing, damaged or unclear, the licensed Engineer in Charge or on duty at the time shall notify the Owner/User of the steam Boiler. The Owner/User shall obtain a notarized letter, signed by an officer of the manufacturer of the Boiler or burner, listing the maximum capacity of the steam Boiler in BTU/hr. Such letter shall be an acceptable basis for calculating the horsepower of that particular steam Boiler.
(c) The minimum safety valve relieving capacity shall be determined in accordance with the ASME Code.


522 CMR 2.06
Adopted by Mass Register Issue 1321, eff. 9/9/2016. Amended by Mass Register Issue 1402, eff. 10/18/2019. Amended by Mass Register Issue 1407, eff. 10/18/2019. Amended by Mass Register Issue 1458, eff. 12/10/2021.

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