§ 175.75. Exhaust systems.

 (a)  Condition of exhaust system. All components of the exhaust system shall be in safe operating condition as described in §  175.80 (relating to inspection procedure).

 (b)  Exhaust system requirements. A vehicle specified under this subchapter shall be constructed, equipped, maintained and operated to prevent engine exhaust gases from penetrating and collecting in any part of the vehicle occupied by the driver or a passenger, in addition to requirements of this title for an emission control system and smoke control for a diesel-powered vehicle.

   (1)  A vehicle specified under this subchapter shall be equipped with a muffler or other effective noise-suppressing system in good working order and in constant operation. A muffler or exhaust system may not be equipped with a cutout, bypass or similar device and a muffler may not show evidence of external repair.

   (2)  The exhaust system of a vehicle may not be modified in a manner which will amplify or increase noise emitted by the motor of a vehicle above the maximum level permitted by Chapter 157 (relating to established sound levels).

   (3)  Headers and side exhaust are permitted if the vehicle meets the requirements of this section.

   (4)  An exposed exhaust system shall be equipped with an adequate heat shield or protective system.

   (5)  An exhaust system shall extend and discharge completely to the outside edge of the vehicle body, including a truck bed, or as originally designed.

   (6)  A firefighting vehicle is exempt from regulations concerning exhaust systems, mufflers and noise control.

Authority

   The provisions of this §  175.75 amended under the Vehicle Code, 75 Pa.C.S. § §  4103, 4301, 4501, 4521 and 6103.

Source

   The provisions of this §  175.75 adopted October 29, 1982, effective February 1, 1983, 12 Pa.B. 3862; corrected November 12, 1982, effective February 1, 1983, 12 Pa.B. 3947; readopted December 2, 1988, effective December 3, 1988, 18 Pa.B. 5362; amended November 13, 1998, effective May 13, 1999, 28 Pa.B. 5670. Immediately preceding text appears at serial pages (221238) to (221239).



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