Cal. Code Regs. tit. 13 § 1050
This article and Sections 600 through 608 and 1030 through 1038 of this title are intended to comply with Vehicle Code Section 27150.2. After the study required by Vehicle Code Section 27150.3, an additional study of passenger vehicles, and review of arguments and data submitted by manufacturers and installers, the department has determined that a simple noise test, as provided in Sections 1030 through 1038, is a practical way to control the sale and installation of exhaust systems and parts that may exceed noise limits set by Vehicle Code Sections 23130 and 23130.5. The department has provided exemptions where compliance with these regulations would result in undue hardship.
When an original exhaust system produces noise substantially under the limits in Section 1036 of this title, manufacturers, sellers, and installers must use caution to ensure that installing a certified exhaust system or part does not significantly increase the noise in violation of Vehicle Code Section 27151. Increasing the noise would defeat the purpose of new vehicle limits in California statutes and regulations.
Compliance with the provisions of this article does not exempt any person from complying with other sections of the Vehicle Code except as provided by Vehicle Code Section 27150.7, nor from complying with any other provisions of law including but not limited to Section 17500 of the Business and Professions Code and Section 3369 of the Civil Code.
Cal. Code Regs. Tit. 13, § 1050
Note: Authority cited: Sections 2402 and 27150.2, Vehicle Code. Reference: Sections 2500- 2504, 2540- 2549, and 27150.2, Vehicle Code.