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Please bear with us as we move to our new location in the Ablemarle Building on 325 N. Salisbury Street, Raleigh, NC this week and next week. Our mailing address will still be 1202 Mail Service Center, Raleigh, NC 27699-1202. All phone numbers will remain the same. Please call our main number for assistance – 919-647-0000.

Engineering and Codes


Engineering and Codes » Code Enforcement Resources

Code Enforcement Resources

Code Interpretations

2009 Mechanical

0307.2.3 Auxiliary and Secondary Drain Systems.pdf .pdf
0308 6 - Listed Type I Hood Clearance to Combuistibles.pdf .pdf
0504.2 - Dryer Duct Rated Assembly Membrane Penetrations.pdf .pdf
0507 1 - Listed Type I Hood Clearance to Combuistibles.pdf .pdf
0507 9 - Listed Type I Hood Clearance to Combuistibles.pdf .pdf
0607.6.2 - Dryer Duct Rated Assembly Membrane Penetrations.pdf .pdf
301.4 - Partial Replacement of a Split System Heat Pump or Air Conditioner.pdf .pdf
303.4 - Protection of Appliances from Damage.pdf .pdf
304.10 - Guard Requirements for Rooftop HVAC Equipment.pdf .pdf
304.9.3 - Masonry Used As Mechanical Equipment Support.pdf .pdf
306.5 - Access for Commercial Kitchen Roof Top Exhaust Fans.pdf .pdf
307.2.3(1) - Auxiliary Drain Pan Size Requirements.pdf .pdf
403.2 - Make-Up Ventilation Air Source Requirements.pdf .pdf
403.2.2 - Make-up Air to Gang Toilet Rooms.pdf .pdf
403.3 - ASHRAE 62 Intermittent or Variable Occupancy Provision.pdf .pdf
403.3 - Ventilation Rate Requirements.pdf .pdf
405.2 - Emergency Fan Shutdown Control Requirements.pdf .pdf
507.16 - Performance Test Requirements for Type I Hoods.pdf .pdf
507.16.2 - Commercial Hood Certification.pdf .pdf
601.2 - Make-up Air to Exit Access Corridors.pdf .pdf
601.2 - Return Air In Exit Access Corridors.pdf .pdf
601.3 - Exhaust Ducts In Plenum Spaces.pdf .pdf
601.3 - Exit Enclosure Ventilation Systems.pdf .pdf
602.1 - Building Shaft for Exhaust Air.pdf .pdf
602.1 - Plenums Versus Habitable Rooms.pdf .pdf
602.2.1 - Materials Exposed in Plenums of Dwellings and Townhouses.pdf .pdf
603.10 - Installation of Factory-Made Flexible Duct on Ceiling Joists.pdf .pdf
603.10 - Support of Flexible Factory-Made Air Duct.pdf .pdf
603.14 - Flexible Air Duct and Air Connector Ground Clearance.pdf .pdf
603.4 and 603.5 - Bathroom Exhaust Duct Material For Dwellings and Townhouses.pdf .pdf
603.6 - Clarification of Flexible Air Duct and Flexible Air Connector.pdf .pdf
607.4 - Fire Damper Access Requirements.pdf .pdf
607.5.3 - Duct Material Requirements to Eliminate Fire Damper.pdf .pdf
917.2 - Commercial Range in Dwelling.pdf .pdf
918.10 - Return Air Requirements for Multi-story Dwelling Unit.pdf .pdf
918.10 - Returns for a Forced Air Heating or Cooling System.pdf .pdf