Manual for Assessing Safety Hardware Implementation

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California Department of Transportation's (Caltrans) timeline for implementation of roadside safety hardware and evaluation of new products under the Manual for Assessing Safety Hardware (MASH) is consistent with the Association of State Highway and Transportation Officials (AASHTO) and Federal Highway Administration Joint Implementation Agreement for MASH.

Caltrans Policy Documents on Implementation

List of Devices

Other Resources

• Authorized Materials Lists
• Status of AASHTO MASH Implementation
• Traffic Safety Systems Guidance