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  Roadway Departure Safety
                Strategic Approach
                Keep Vehicles on the Road
                Provide for a Safe Recovery
                Reduce Crash Severity
                Focus on Reducing Rural Roadway Departures (FoRRRwD)
                
                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.SearchHardware Type
                    
- Any -Barrier Terminals and Crash CushionsLongitudinal Barriers and Bridge RailsLuminaire SupportsSign Supports, Mailboxes, and Delineator PostsWork Zone DevicesStart DateEnd Date
    Letter
																								Date
																								Testing
																								Manufacturer
																								Hardware TypeSort ascending
																								Device DescriptionLS-27A
																																				September 1, 1992
																																				NCHRP 350
																																				Hapco Division
																																				Luminaire Supports
																																				Change in handhole dimensionsLS-21
																																				September 7, 1990
																																				NCHRP 350
																																				Shakespeare Products
																																				Luminaire Supports
																																				Fiberglass poles ASW27 thru ASW35 and AHW27 thru AHW35 with Al shoe baseLS-22
																																				September 19, 1990
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Chart summarizing approval letters ls2, ls4, ls9, ls15, ls19LS-23
																																				February 7, 1991
																																				NCHRP 350
																																				PrecisionForm
																																				Luminaire Supports
																																				Revision to PF200-1 breakaway coupler.LS-23A
																																				November 20, 1992
																																				NCHRP 350
																																				PrecisionForm
																																				Luminaire Supports
																																				Supplement Removes Certain ConditionsLS-24
																																				July 22, 1991
																																				NCHRP 350
																																				Akron Foundry
																																				Luminaire Supports
																																				Revisions to TB-1, TB-2, TB-3 Cast aluminum transformer basesLS-25
																																				October 10, 1991
																																				NCHRP 350
																																				Utah DOT
																																				Luminaire Supports
																																				Four-bolt luminaire slip base.LS-26
																																				June 10, 1992
																																				NCHRP 350
																																				Sherman International
																																				Luminaire Supports
																																				Direct Burial Breakaway Fiberglass Luminaire SupportsLS-26A
																																				March 15, 1996
																																				NCHRP 350
																																				Sherman International
																																				Luminaire Supports
																																				Additional poles acceptedLS-26B
																																				April 18, 1997
																																				NCHRP 350
																																				Sherman International
																																				Luminaire Supports
																																				Additional poles accepted
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