AASHTO GFRP-2B, LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete, Second Edition (2018), gives design provisions for concrete bridge members reinforced with glass fiber reinforced polymer bars. Section 1 states the scope, definitions, limitations, and design philosophy, and Section 2 addresses concrete structures. Material properties of GFRP reinforcing bars are defined, followed by the limit states applied in design: service, creep rupture, fatigue, strength, and extreme event. Design for flexural and axial force effects covers assumptions, flexural and compression members, bearing, tension members, and control of cracking through distribution of reinforcement. Shear and torsion design for B-regions is treated through general requirements, a sectional design model, and interface shear reinforcement by shear friction. The specifications are intended for bridge designers and agencies using GFRP reinforcement in decks and traffic railings.