(a) All terms that are not defined in this subpart will have the meaning given them in the Act.

(b) Act means the Noise Control Act of 1972 (Pub. L. 92-574, 86 Stat. 1234).

(c) Administrator means the Administrator of the Environmental Protection Agency or his authorized representative.

(d) Agency means the United States Environmental Protection Agency.

(e) Acoustic descriptor means the numeric, symbolic, or narrative information describing a product's acoustic properties as they are determined according to the test methodology that the Agency prescribes.

(f) Export exemption means an exemption from the prohibitions of section 10(a) (3) and (4) of the Act; this type of exemption is granted by statute under section 10(b)(2) of the Act for the purpose of exporting regulated products.

(g) National security exemption means an exemption from the prohibitions of section 10(a) (3) and (5) of the Act, which may be granted under section 10(b)(1) of the Act in cases involving national security.

(h) Product means any noise-producing or noise-reducing product for which regulations have been promulgated under part 211; the term includes “test product”.

(i) Regulations published under this part means all subparts to part 211.

(j) Testing exemption means an exemption from the prohibitions of section 10(a) (1), (2), (3), and (5) of the Act, which may be granted under section 10(b)(1) of the Act for research, investigations, studies, demonstrations, or training, but not for national security.

(k) Test product means any product that must be tested according to regulations published under part 211.