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 |
|---|---|---|---|---|---|
| LS-71 | NCHRP 350 | Akron Foundry Company | Luminaire Supports | Cast Aluminum Transformer Bases | |
| WZ-295 | NCHRP 350 | Eastern Metal/USA Sign | Work Zone Devices | 6770-C-902-S-KLSH and 6770-C-L-KLSH sign stands | |
| SS-165 | NCHRP 350 | Designovations, Inc. | Sign Supports, Mailboxes, and Delineator Posts | Snap'n Safe Couplers | |
| B-208 | NCHRP 350 | Volkmann and Rossbach | Longitudinal Barriers and Bridge Rails | VarioGuard "C" Freestanding Barrier | |
| B-213 | NCHRP 350 | Varley and Gulliver Limited | Longitudinal Barriers and Bridge Rails | Proprietary VGAN 300 Aluminum Permanent Bridge Barrier | |
| CC-111 | NCHRP 350 | Midwest Roadside Safety Facility | Barrier Terminals and Crash Cushions | Low Tension Cable Guardrail End Terminal | |
| CC-113 | NCHRP 350 | Barrier Systems, Inc. | Barrier Terminals and Crash Cushions | Raptor Crash Cushion | |
| B-205 | NCHRP 350 | California DOT | Longitudinal Barriers and Bridge Rails | CRMcrete Weed Barrier | |
| SS-126A | NCHRP 350 | Northwest Pipe Company | Sign Supports, Mailboxes, and Delineator Posts | Northwest Pipe's Performance Post | |
| CC-35J | NCHRP 350 | Energy Absorption Systems, Inc. | Barrier Terminals and Crash Cushions | QuadGuard and QuadGuard II various length systems |