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🏛️Federal & Industry Standards
Manual for Assessing Safety Hardware (MASH)
WebPennsylvania Department of Transportation (PennDOT)Publication 408 — 2023 Edition
MASH establishes testing and evaluation criteria for roadside safety hardware including guardrails, crash cushions, bridge railings, sign supports, and work zone devices. FHWA requires MASH compliance for all new hardware installations on the National Highway System.
Published by AASHTO. 2nd Edition, 2016.
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