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                Safety Eligibility Letter B-04
  
  **Hardware Type:**
            Longitudinal Barriers and Bridge Rails
                          **Code:**
            B-04
                          **Date:**
            02/16/1989
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Michigan D.O.T
                          **Device Description:**
            Timber Guardrail Posts Specification (Oper.) U.S. DEPARTMENT OF TRANSPORTATION

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