Some requirements in the Energy Code are classified as “mandatory requirements” because they are required regardless of the compliance approach used. All projects must comply with all mandatory requirements.

It is the responsibility of the designer to design a lighting system and specify products that meet these requirements. It is the responsibility of the installer to install the lighting and controls specified on the plans. It is the responsibility of code enforcement officials to verify that the mandatory requirements are included on the plans and installed in the field.

The mandatory requirements for nonresidential indoor lighting include the following:

• Certain functional areas in nonresidential buildings must comply with the low-rise residential lighting requirements in §130.0(b).
• Manufactured lighting equipment, products, and devices must be appropriately certified or meet functionality requirements in §110.0(b), §110.1, and §110.9(a).
• Requirements for how luminaires shall be classified(according to technology) and how luminaire power shall be determined in §130.0(c).
• Required indoor lighting controls in §130.1.
• Lighting control acceptance testing in §130.4(a).
• Lighting control certificates of installation in §130.4(b).

The Energy Code also includes mandatory requirements for electrical power distribution systems. See Chapter 8 for more information.