State offices and all DLLR physical locations will be closed to the public November 26 through November 28, 2014. However, Unemployment Insurance telephone and Web operations WILL be available on Wednesday, November 26.

DLLR's Division of Labor and Industry


Keep Your Boiler Room Safe - High Pressure Boilers - Boiler and Pressure Vessel Safety - Safety Inspections


Keep Your Boiler Room Safe - High Pressure Boilers (Word document, 114KB, download Word viewer for free)

Objective: To educate the public on the safe and proper use of High Pressure (Power) Boilers


Do Not---

  • Permit unqualified personnel to operate a boiler. Maryland Stationary Engineers License is required over 30 BHP Capacity.
  • Operate a boiler without an adequate source of combustion air.
  • Operate a boiler without a valid Certificate of Inspection issued by Safety Inspection Unit DLLR State of Maryland.
  • Store flammables in the Boiler Room.


  • Respect the boiler it can be dangerous.
  • Have the boiler inspected internally annually, as required by State Law.
  • Report to the Chief Boiler Inspector for the boilers to be installed, at least 30 days prior to installation.
  • Test safety devices on a periodic basis (as recommended by CSD-1 or NFPA 85) and log the tests.
  • Inspect the boiler daily for proper operation.
  • Allow only authorized ("R" stamp holder) repair firms to make weld repairs.


  • Keep your Boiler Room clean.
  • Keep a check on leakages and rectify without delay.
  • In an emergency, remain calm and use the emergency devices.
  • In case of fire operate Emergency cut off switch.
  • Maintain a Log of Boiler Operations, Maintenance, Repairs, Tests.
  • Keep the Boiler Room ventilated.

Do Not----

  • Operate a boiler which is not constructed in accordance with the American Society of Mechanical Engineers (ASME) Boiler & Pressure Vessel Code.
  • Operate a boiler unless it is equipped with a safety valve with sufficient relieving capacity, set at or below the maximum allowable working pressure.
  • Bypass the pressure controls, temperature controls, low water cutout, flame safety or any other limit switch or control.
  • Restrict the function of a safety valve, such as by reducing or plugging the outlet or inlet, painting or removing it.
  • Leave the boiler room unattended.

We are here for your protection.

For additional information, contact:
Division of Labor and Industry
Elevator and Escalator Safety

1100 N. Eutaw Street - Room 601
Baltimore, MD 21201
(410) 767-2339
FAX: (410) 333-7721

Emergency telephone number:  (410) 767-2990