North Carolina
State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors


Interpretations - Mechanical Code
North Carolina Department of Insurance / Office of State Fire Marshall (Engineering)



The following interpretations apply to heating and cooling installations.


0304.1          Partial Replacement of a Split System Heat Pump or Air Conditioner

0304.10.3    Bricks & CMU Used as Mechanical Equipment Supports

0304.11       Guard Requirements for Rooftop HVAC Equipment

0307.2.3      Auxiliary and Secondary Drain Systems

0312.1         Heating and Cooling Load Calculations


Interpretations for mechanical code items not related to comfort heating and cooling, as well as interpretations for previous codes (2002, 2006, 2009 & 2012) are available on the NCDOI/OSFM website.

If you wish to visit the NCDOI website in a new browser window, click here.