Section 4532 - Smoke control for diesel-powered motor vehicles(a) Standards and inspection.--The department shall promulgate regulations for the control of smoke from diesel-powered motor vehicles prescribing standards, inspection procedures and inspection equipment.(b) Compliance with standards.--No person shall operate a diesel-powered motor vehicle on a highway in such a manner that the smoke emitted exceeds the standards established under this section. Each day of operation in violation shall constitute a separate offense under this subsection.(c) Correction to avoid prosecution.--Any person arrested in violation of this section shall, upon written notice, be given the opportunity to correct the violation within 48 hours. If sufficient proof of correction is furnished to the arresting officer or his representative within 48 hours of the delivery of the written notice, no prosecution of the violation shall be brought.(d) Limitation on alteration of system.--No person shall intentionally change or alter a factory installed smoke control system on any diesel-powered vehicle or its fuel system so as to limit the ability of the system to control smoke, and no person shall remove the smoke control system except for repair or installation of a proper replacement. 1976, June 17, P.L. 162, No. 81, § 1, eff. 7/1/1977.