A. HVAC
- Heating (duct system)
- Ventilating (windows, exhaust, fans)
- Air-Conditioning (central, unitary, heart recover system, etc.)
B. Electrical
- Power
- Lighting
- Emergency lighting
- Emergency power
- Communications cabling (telephone)
- Data cabling (computer network)
- Security systems
C. Plumbing
- Water supply
- Domestic cold and hot water
- Sanitary waste and vent piping
- Site and storm water drainage
- Irrigation systems
D. Fire Protection
- Portable fire extinguishers
- Smoke detectors
- Fire alarm system
- Sprinklers and hydrant systems
E. Special Systems
- Energy management systems
- Solar systems
- Ice storage systems
- Computer-aided programming