2012 International Mechanical Code (International Code Council Series)

New in the 2012 IMC

Key changes include:

• New and existing mechanical systems must be maintained in accordance with ASHRAE/ACCA/ANSI Standard 180.


• Parking garage exhaust now defined as environmental air.


• Includes specifications for grease reservoirs in commercial cooking exhaust duct systems.


• Includes requirements for underground grease ducts.


• Requires any combustible material in a return air plenum to be listed and labeled to verify compliance with ASTM E-84 or UL 723.


• Air dispersion systems are now allowed.


• New requirements for evaporative coolers.