What document outlines the energy efficiency requirements for a building?

The energy code or standards, such as ASHRAE 90.1, outline the energy efficiency requirements for a building. These codes provide the minimum energy efficiency standards for the design and construction of buildings, ensuring that they meet certain criteria for energy performance and sustainability. ASHRAE 90.1, in particular, focuses on the energy-efficient design of buildings, setting guidelines for various systems, including heating, ventilation, air conditioning (HVAC), lighting, and the building envelope.

These codes are critical for achieving energy efficiency and often inform the requirements that other documents, like LEED certification guidelines, build upon. While LEED certification encompasses broader sustainability measures, the specific energy requirements are derived from established energy codes. The building occupancy permit is related to the approval for a building to be occupied, and a construction management plan pertains to the organization and execution of construction projects, neither of which directly addresses energy efficiency standards.

In summary, energy codes like ASHRAE 90.1 specifically delineate the expectations for energy efficiency that must be achieved in building projects, making them the correct answer to this question.