MC311 Logo
Call 311 To Get It Done!
Visit montgomerycountymd.gov/311
For Emergency: 911 | Out of County: 240-777-0311

SEARCH

Enter an English language keyword to search the 311 web site:
Results will be returned in English language

All Services

Description of Situations that Require a Mechanical Permit
Effective February 2003, a mechanical permit was required to erect, install, enlarge, alter, repair, remove, convert or replace a mechanical heating, ventilating and 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. This equipment includes, but is not limited to, furnaces, heat pumps, air-conditioning units, range hoods, cooling towers, chillers, Fuel-oil tanks and piping system, LP-gas tanks and piping systems
Find more information from the following link(s):
  • Mechanical Permit