General Information

Clarifications on Implementing MASH 2016 Updated: March 24, 2020

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Eligibility of Crash Cushion Devices (Sunset Date for MASH 16), December 20, 2018 

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Summary of MASH Implementation
Actions, September 12, 2018 

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Letter from FHWA to Utah DOT RE:MASH Implementation, August 16, 2018 

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Modification to
Dec 2018 Sunset
Date for MASH, August 3, 2018 

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Clarification of June 2018 Sunset Date for MASH, June 26, 2018 

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AASHTO to FHWA RE:MASH Implementation, June 21, 2018 

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Clarifications on Implementing MASH 2016, May 9, 2018 

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Process to Determine Crashworthiness, April 9, 2018 

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FHWA Open Letter on MASH Testing Matrices, May 26, 2017 

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FHWA MASH Implementation Memo, January 7, 2016 

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Joint MASH Implementation Agreement, December 21, 2015 

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AASHTO MASH 2016 Implementation Resources 

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