Portland cement concrete (PCC) pavement joint sealing material technology has evolved in recent decades, and the effect of current joint sealant practice has not been well documented. Therefore, it is necessary to establish a standardized approach to joint sealant evaluation as well as to investigate the practice of joint sealant in PCC pavement design. The TRB National Cooperative Highway Research Program's NCHRP Synthesis 568: Portland Cement Concrete Pavement Joint Sealant Practices and Performance compiles and documents information regarding the current state of practice of joint sealing PCC by state departments of transportation.