O2EPCM, Inc. is a prominent award-winning experienced firm providing Professional, Technical, Consulting and Management Services in the Planning, Design, Engineering and Construction Industry to Local, State, Federal Government Agencies, Utility Companies and Private Clients. school construction, including California Building Code (CBC), Cal Green Energy Code, Occupational Safety and Health Administration (OSHA), American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRE), and American Society of Testing and.