Department of Consumer and Regulatory Affairs

DC Agency Top Menu

The DC Business Portal will be unavailable from 6 pm, November 16 until 6 am, November 19 due to scheduled maintenance. Thank you for your patience.

-A +A
Bookmark and Share

Boiler Inspections

Building-size heating boiler

Boilers and Unfired Pressure Vessels in the District of Columbia need to be inspected at least once a year. The annual inspections can be conducted by DCRA Inspectors or by Boiler Insurance Companies licensed by the District of Columbia. You can request an inspection by calling (202) 442-9557.

Once the annual inspection report has been approved, an annual Certificate of Inspection is issued to the owner for posting. All new or used boilers and unfired pressure vessels installed, erected, re-erected, or reinstalled in the District of Columbia shall not be approved until the proper permits and inspections have been obtained and approved.


All boilers and unfired pressure vessels installed in the District of Columbia are assigned identification numbers.

Anyone welding on a Boiler or Unfired Pressure Vessel under Construction, Installation, Repair or Alteration must hold a valid DC Welding Certification card.

The safe operation of Boiler Plants and Heavy Construction Equipment is ensured and enforce by DC Licensed Steam and Operating Engineers. DC Welder and Boiler Insurance Company Inspectors renew licenses every (2) years.


The following fees will apply:

  • Annual Certificate of Inspection Fee (per boiler and air compressor): $50.00 each
  • Welder License Fee for test and renewal: $100.00 
  • New and renewal Insurance Inspection Card fee: $200.00

Standard Codes

The Code Standards that are used to enforce safety of compliance are as follows:

Applicable DC Codes

  • DCMR Title 17 Chapter 4 (Steam Engineers)
  • DCMR Title 12 Chapter 10E (Boilers, Water Heaters and Pressure Vessels)
Contact TTY: