Section 69-9-303 - Certification by manufacturers - Testing procedures(a) Vessel motors manufactured after January 1, 1977, and offered for sale in Tennessee shall be certified to the agency by the motor manufacturer as having been tested and found not to exceed the noise levels prescribed in § 69-9-302.(b) Testing procedures employed to determine such noise levels shall be in accordance with § 69-9-302. The agency may, by regulation, amend such testing procedures when deemed necessary to adjust to advances in technology.Acts 1977, ch. 132, § 2; T.C.A., § 70-2243; T.C.A. §69-10-303; Acts 2007 , ch. 185, § 15.