AASHTO MASH tests supersede NCHRP-350 tests. PSS tested the CrashGard Sand Barrel System to MASH Test Level 3 last spring. CrashGard passed all six tests. In this video, footage is shown from every test. The FHWA issued Eligibility Letter CC-145 for CrashGard in September 2018. Find more information at pss-innovations.com or call 800-662-6338.