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If the air distribution system is greater than 2,000 CFM, then, yes, you need smoke detectors on both supply and return air ducts.
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A mechanical permit is required to erect, install, enlarge, alter, repair, remove, convert, or replace a mechanical heating, ventilating, or air-conditioning system, the installation of which is regulated by the International Mechanical Code (IMC), International Fuel Gas Code (IFGC), or the International Residential Code (IRC), as appropriate. These pieces of equipment include, but are not limited to, furnaces, heat pumps, air-conditioning units, range hoods, cooling towers, chillers, fuel-oil tanks and piping systems, and boilers.
The current Mechanical Codes used in Prince George’s County can be found on DPIE’s Building Codes & Bulletins page.
Anyone applying for a mechanical permit will need a Mechanical (HVAC) contractor’s license.
See the Fee Schedule.
You will need to take a mechanical trade (online) permit. Only a licensed mechanical contractor can pull this permit.
No, all boiler permits must be handled by the State of Maryland. For more information, contact them by calling 410-767-233.
Yes, you will need a mechanical permit, and you will also need a building permit.
Please refer to the 2018 IMC.
The status of your permit can be checked in ePlan.