40 CFR §203.4

1. (a)The Administrator will, within ninety (90) days after receipt of a properly filed application for certification, determine whether such product is a low-noise-emission product. In doing so, he will determine if the product:
   1. (1)Is one for which a noise source emission standard has been promulgated under section 6 of the act;
   2. (2)Emits levels of noise in amounts significantly below the levels specified in noise emission standard under regulations under section 6 of the act applicable to that product or class of products; and
   3. (3)Is labeled in accordance with regulations issued pursuant to section 8 of the act.
2. (b)The Administrator will, upon making the determination whether a product is a low-noise-emission product, publish in the Federal Register notice of his determination, and the reasons therefor.
3. (c)The notice of determination that a product is a low-noise-emission product shall be revocable whenever a change in the low-noise-emission product criterion for what product occurs between determination and decision. Notice of any revocation will be published in the Federal Register, together with a statement of the reasons therefor.
4. (d)The notice of determination that a product is a low-noise-emission product shall expire upon publication in the Federal Register of the Administrator's notice of a decision that a product will not be certified.