Environmental Rules in Allegheny County, PA (2026)

Allegheny County Subdivision and Land Development Ordinance § 780-515.A

Every subdivision or land development which will affect stormwater runoff characteristics shall include provision for the management of runoff to comply with the following: (1) Development in areas where municipal stormwater management regulations have been enacted. Proposed subdivisions and land developments located in municipalities or areas of municipalities where municipal stormwater man...

Allegheny County Code § 780-503.B, C(4)

If the municipality in which a proposed subdivision or land development is located has enacted a grading ordinance, the municipal standards shall apply. ... If the municipality has no applicable regulations, the following general standards shall apply. ... A soil erosion and sedimentation pollution control plan shall be prepared ... and where required, a finding of adequacy shall be issued by t...

Allegheny County Code § 535-2(A)

No person shall permit, cause, suffer or allow the engine of a heavy-duty diesel-powered motor vehicle to idle prior to, during layover between, or at the conclusion of, any trip or route for any period of time beyond that which is reasonably required to attain, or to secure from, normal operating conditions. The Board of Health shall promulgate rules and regulations, subject to the approval of...