Program Area: Adoption

In order to enjoy the economic and environmental benefits of an energy efficient building sector, a state or municipality must first go through the process of adopting an energy efficient building code.  Building codes are a crucial component of any successful energy policy because they create easy-to-understand minimum requirements for all new construction. Moreover, by adopting building energy codes, a state creates a specific baseline goal to which it can compare current performance and measure success. 

The code adoption process differs from state to state, but in most cases codes are adopted through a legislative process (i.e. the code is updated by a bill that is passed by the state legislature and signed by the governor), a regulatory process (i.e. the legislature has granted a state agency the power to issue a code), or, most commonly, through a process that combines elements of both the legislative and regulatory routes. For example, a state legislature might delegate the authority to research and draft a building energy code, but make adoption of the proposed code contingent on a final vote in legislature.

States do not have to approach adoption from scratch. The US Department of Energy recommends that states adopt the latest versions of the IECC and ASHRAE 90.1 (the codes are updated on a three-year cycle) as their codes for residential and commercial buildings, respectively. The requirements laid out in these model codes take into account differences in climate and geography across the country. Adopting these codes (or the equivalent) provides states with construction minimums that are easily achievable using widely available building materials and technologies while also paving the way for a more energy-efficient building sector.