FMVSS 213—CR systems
Applicable unless a vehicle or child restraint system is certified to § 571.213b (see below).View FMVSS 213
FMVSS 213a; CR systems—side impact protection
Mandatory applicability beginning June 30, 2025.
FMVSS 213b; CR systems (updated 213)
Mandatory applicability beginning December 5, 2026.
View FMVSS 213b
FMVSS 213 Outline by Safe Ride News Publications
This color-coded outline was created to help understand FMVSS 213, the regulation that sets standards for car seats. It also can function like a table of contents for users who are wanting to track down specific details within the official NHTSA document. (NOTE: SRN will update this outline to reflect FMVSS 213a when that standard becomes mandatory in 2025.)
View the FMVSS 213 Outline (PDF)