USA Banner
  U.S. flag
              An official website of the United States government Here's how you knowOfficial 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** ( A locked padlock ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. 
 U.S. Department of Transportation Icon United States Department of Transportation
 Search DOT
            Search
                    About FHWAFHWA Organization
                Headquarters Offices
                Field Offices
                Strategic Plan
                Business Opportunities
                Staff Directories
                Careers
                Highway History
                Contact UsProgramsAcquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                Safety
                Browse by TopicsResourcesCore Highway Topics
                Federal Aid Essentials
                Automation
                Complete Streets
                Laws and Regulations
                Policy & Guidance Center
                Section 508
                Publications and Statistics
                Professional Development
                National Highway Institute
                Resource Center
                Accessibility Resource Library
                FHWA Research LibraryNewsroomPress Releases
                Speeches & Testimony
                Photos
                Videos
                Media ContactsMenu FHWA Highway Safety Programs Home
                        Safety
                        Roadway Departure Safety
                        Reduce Crash Severity
                        Hardware Eligibility Letters


            
            In This Section
  

  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
																								TestingSort descending
																								Manufacturer
																								Hardware Type
																								Device DescriptionWZ-136
																																				January 29, 2003
																																				NCHRP 350
																																				United Rentals
																																				Work Zone Devices
																																				Type III Barricade with solid Plastic RailsWZ-120
																																				June 3, 2002
																																				NCHRP 350
																																				NES Work Safe
																																				Work Zone Devices
																																				Type III BarricadeWZ-107
																																				February 7, 2002
																																				NCHRP 350
																																				Yodock Wall Co., Inc.
																																				Work Zone Devices
																																				Energy Dispersement Cell BarricadeWZ-99
																																				November 21, 2001
																																				NCHRP 350
																																				Dicke Tool Co
																																				Work Zone Devices
																																				8-27-01WZ-83
																																				August 24, 2001
																																				NCHRP 350
																																				Lang Products International
																																				Work Zone Devices
																																				Crosswind 405-HD2 and 404-HD2 portable stands. Midrange mast to bottom of Roll Up bracingWZ-68
																																				February 9, 2001
																																				NCHRP 350
																																				Sign Up Corporation
																																				Work Zone Devices
																																				27-SSX Portable Sign Stand 12-1-2000 With 48x48 RollUpWZ-54
																																				September 15, 2000
																																				NCHRP 350
																																				FHWA Policy Memorandum
																																				Work Zone Devices
																																				Generic Crashworthy Barricade Designs, Drums with Warning Lights, Generic Lightweight Warning, and Lights Acceptance Letter WZ-54WZ-39#1
																																				December 6, 2005
																																				NCHRP 350
																																				Davidson Plastics Corp.
																																				Work Zone Devices
																																				Type III BarricadeWZ-25A
																																				October 22, 2010
																																				NCHRP 350
																																				Dicke Safety Products
																																				Work Zone Devices
																																				Model FS2000W portable sign standWZ-12
																																				May 28, 1999
																																				NCHRP 350
																																				Flasher Handling
																																				Work Zone Devices
																																				Air Flow Roll Up Sign Unit, Bantam II portable sign, Polypropylene sign Panels on Drums
  Pagination
    «
            « First
                          ‹
            ‹‹
                          ...
                          120
              121
              122
              123
              124
              125
              126
              127
              128
                                      ›
            ››
                          »
            Last » U.S. DEPARTMENT OF TRANSPORTATION

**Federal Highway Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

202-366-4000Subscribe to email updates
                    About
  

        
              About FHWA
                Careers
                Org Chart
                Staff Directories
                Work with UsPrograms
  

        
              Acquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                SafetyPolicies, Rights, Legal
  

        
              About DOT
                Accessibility
                Budget and Performance
                Civil Rights
                FOIA
                Information Quality
                No FEAR Act
                Office of Inspector General
                Privacy Policy
                USA.gov
                Web Policies and Notices
                Web StandardsNews & Events
  

        
              Newsroom
                Press Releases
                Speeches & Testimony
                Media Contacts
                Connect with Us