As used in this article, the following terms shall have the
meanings indicated:
ENGINE BRAKE RETARDING DEVICE
Any mechanical, electromechanical or electronic mechanical
device, or any combination thereof (also commonly called an "engine
brake"), used for the purpose of supplementing the braking system
of a motor-powered vehicle engine.
Any major routes or streets generally utilized by trucks equipped
with brake retarders shall be posted with appropriate signs where
required by the relevant PennDOT rules and regulations to effectuate
the enforcement provisions of this article.
Any person who violates any provision of this article shall,
upon conviction, be sentenced to pay a fine of not less than $300
nor more than 600, plus costs of prosecution, and such other costs
as may be authorized by the Commonwealth of Pennsylvania.