In accordance with the provisions of M.G.L. c. 146, § 2, the Board adopts the 2021 NBIC Part 2 Installation.

1. (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 Division in a format approved by the Chief.

2. (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 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 Inservice Inspector. A thorough Internal Inspection requires the following:

   1. (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.
   2. (b) Pre-inspection and post-inspection activities as provided for in the NBIC shall be performed.

3. (3) Certificate to Be Posted.

   1. (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, shall be kept with said Boiler, and shall be always accessible to the District Engineering Inspector or Authorized Inservice Inspector.
   2. (b) The Certificate shall include the name of the Authorized Inspection Agency, 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.
   3. (c) The Certificate shall remain posted while the Certificate is in force, unless a District Engineering Inspector or an Authorized Inservice 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 Inservice 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. (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. (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 Authorized Inspection Agency ceases for any cause to inspect the Boiler.

6. (6) Reporting by Authorized Inspection Agencies.

   1. (a) Pursuant to M.G.L. c. 146, § 18, every Authorized Inspection Agency shall forward to the Chief, within 14 days after each inspection, reports of all Boilers inspected by the Authorized Inservice 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.
   2. (b) All Authorized Inspection Agencies 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 Authorized Inspection Agencies 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.
   3. (c) The Authorized Inservice Inspector shall notify the Chief or his or her designee immediately in writing if the Authorized Inservice Inspector finds that an unsafe and dangerous condition exists resulting in the removal of the Certificate.

7. (7) Boiler Horsepower.

   1. (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 nameplate 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 nameplate divided by 34.5; the Btu/hr input listed on the manufacturer’s nameplate divided by 41,840; or the Btu/hr output listed on the manufacturer’s nameplate divided by 33,475.
   2. (b) If a manufacturer’s nameplate is missing, damaged or unclear, the licensed Engineer-in-Charge or on duty at the time shall notify the Owner/User of the 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 Boiler in Btu/hr. Such letter shall be an acceptable basis for calculating the horsepower of that particular Boiler.
   3. (c) The minimum safety valve relieving capacity shall be determined in accordance with the ASME Code.