Section 212.9. Traffic calming

(a) General policy. The Department on State-designated highways, and local authorities on any highway within their boundaries, may implement traffic calming measures in conformance with Pennsylvania’s Traffic Calming Handbook (Department Publication 383).

(b) Department approval. Local authorities shall obtain approval of the Department prior to implementing a traffic calming measure on a State-designated highway, except when the Department’s handbook provides otherwise or when the Department has entered into an agreement with local authorities that provides otherwise.