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energy-efficiency material

Defined in 1 place of the United States Code.

The term "energy-efficiency material" includes—

(i) a roof or lighting system or component of the system;

(ii) a window;

(iii) a door, including a security door; and

(iv) a heating, ventilation, or air conditioning system or component of the system (including insulation and wiring and plumbing improvements needed to serve a more efficient system).

Source

The term "energy-efficiency material" means a material (including a product, equipment, or system) the installation of which results in a reduction in use by a nonprofit organization of energy or fuel.

Source