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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 Testing Manufacturer Hardware Type Device Description
SS-73 NCHRP 350 PennDot Sign Supports, Mailboxes, and Delineator Posts "Universal" Spacer Bar for splicing u-channels
CC-37B NCHRP 350 (Pfeifer) Barrier Terminals and Crash Cushions Design modification
CC-37A NCHRP 350 (Sicking) Barrier Terminals and Crash Cushions Design modification
B-34B NCHRP 350 Safety Barrier Systems Longitudinal Barriers and Bridge Rails Guardian Safety Barrier - Conditional Acceptance Upgraded to Full
LS-45B NCHRP 350 Transpo Industries Luminaire Supports Production Model of Double Neck Pole Safe Coupling
SS-72 NCHRP 350 TAPCO Sign Supports, Mailboxes, and Delineator Posts V-Loc Sign Support System
SS-71 NCHRP 350 Davidson Plastics Sign Supports, Mailboxes, and Delineator Posts Flexi - Guide Delineator Posts
CC-12D NCHRP 350 Barrier Terminals and Crash Cushions Modified ET-2000 (LET) @ TL-3
SS-68A NCHRP 350 X-Cessories Squared Sign Supports, Mailboxes, and Delineator Posts Slip Base, Triple Square supports in Standard soil
CC-26D NCHRP 350 E. Scott Walter Barrier Terminals and Crash Cushions REACT 350 CZ @ TL-2