Electric Vehicle (EV) Charger Building Standards

The Colorado Energy Code Board (Board) developed a model EV-ready building code for counties, municipalities, and state agencies. Members of the Board are appointed by the Director of the Colorado Energy Office. The model building code includes the following elements:

• EV-ready and EV-capable requirements for commercial and residential buildings;
• EV-ready, EV-capable, and EV charger installation requirements for 20% or more parking spaces at multifamily and commercial buildings;
• Pre-wiring requirements for single-family residential buildings, multifamily, and commercial buildings

Building codes must consider the cost-effectiveness of pre-wiring for EV chargers. At a minimum, EV-ready parking spaces must have electrical panel capacity, raceway wiring, a receptacle, and a circuit overprotection device to support an EV charger with a minimum capacity of 208V.

(Reference Colorado Revised Statutes 24-38.5-401)