In March 2014, the U.S. Consumer Product Safety Commission (CPSC) published a consumer product safety standard for carriages and strollers under section 104 of the Consumer Product Safety Improvement Act of 2008 (CPSIA). The CPSIA sets forth a process for updating mandatory standards for durable infant or toddler products that are based on a voluntary standard when a voluntary standards organization revises the standard. This direct final rule updates the mandatory standard for carriages and strollers to incorporate by reference ASTM's 2021 version of the voluntary standard.