USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation
FHWA Highway Safety Programs

Archived Hardware Eligibility Letters – NCHRP 350

These letters are archived and are posted for "historical and research purposes only" per the sunset dates in the AASHTO/FHWA Joint Implementation Agreement and exceptions to these dates as posted on the AASHTO Committee on Design website.

Letter Date Sort ascending Testing Manufacturer Hardware Type Device Description
CC-103 NCHRP 350 Barrier Systems, Inc Barrier Terminals and Crash Cushions U-MAD Trailer Mounted Attenuator
CC-69E NCHRP 350 Safety By Design Barrier Terminals and Crash Cushions Single Sided Crash Cushion
WZ-275 NCHRP 350 Bone Safety Signs Work Zone Devices Temporary sign stand with a minimum 60 inch mounting height.
CC-42B NCHRP 350 Energy Absorption, Inc. Barrier Terminals and Crash Cushions QuadGuard Wide – 70mph system
CC-88B NCHRP 350 Road Systems, Inc. Barrier Terminals and Crash Cushions SKT & FLEAT using 2 breakaway posts
B-180 NCHRP 350 MWRSF Longitudinal Barriers and Bridge Rails CMB Tiedowns and Transitions
B-134D NCHRP 350 Energy Absorption, Inc. Longitudinal Barriers and Bridge Rails TL-4 Vulcan
WZ-273 NCHRP 350 Bob's Barricades Work Zone Devices Type I Barricade with sign
B-181 NCHRP 350 Western Federal Lands Longitudinal Barriers and Bridge Rails Random Rubble Cavity Wall -- Aesthetic Barrier
B-134C (2008) NCHRP 350 Energy Absorption Systems, Inc. Longitudinal Barriers and Bridge Rails (2008) 12M Vulcan Barrier and Vulcan Barrier Anchor System