The United States Consumer Product Safety Commission (Commission or CPSC or we) is issuing a final rule, amending the play yard mandatory standard. Currently, the CPSC play yard standard incorporates by reference ASTM F406-12a, Standard Consumer Safety Specification for Non-Full-Size Baby Cribs/Play Yards. In this final rule, the Commission is amending the play yard standard to incorporate by reference the most recent version of ASTM's play yard standard, ASTM F406-13. Through this amendment, the Commission is addressing hazards associated with misassembly of play yard bassinet accessories.