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-79 NCHRP 350 Safety By Design Co., Inc. Barrier Terminals and Crash Cushions Trailer Attenuating Cushion (TAC) @ TL-3
WZ-127 NCHRP 350 Yodock Wall Company Work Zone Devices Yodock 2002 Barrier
B-49C NCHRP 350 Bryson Products, Inc. Longitudinal Barriers and Bridge Rails RE-BLOCK:IV plastic blockout
WZ-131 NCHRP 350 Sonoblaster Work Zone Devices Intrusion Detector
B-105 NCHRP 350 Nebraska Department of Roads Longitudinal Barriers and Bridge Rails Thrie-beam transition @ TL-3
CC-33A NCHRP 350 TRINITY Industries Barrier Terminals and Crash Cushions Alternative posts for CAT attenuator
B-106 NCHRP 350 Caltrans Longitudinal Barriers and Bridge Rails Thrie-beam transition @TL-4
CC-80 NCHRP 350 Energy Absorption Systems, Inc. Barrier Terminals and Crash Cushions REGENT-C W-beam guardrail terminal @ TL-3
CC-54D NCHRP 350 Trinity Highway Safety Products Division Barrier Terminals and Crash Cushions Wide-TRACC @ TL-3
CC-81 NCHRP 350 TRINITY Industries Barrier Terminals and Crash Cushions CPSI side- impact enhancement for ET seriesl