What Is the LATCH Weight Limit?
65 lb combined -- the child's weight plus the car seat's own weight, added together. Once that combined total reaches 65 lb, NHTSA guidance (effective February 2014) says to stop using the LATCH lower anchors and reinstall the seat using the vehicle's own seat belt instead.
The one thing to know: Once your child's weight plus the car seat's own weight reaches 65 lb combined, NHTSA says to stop using the LATCH lower anchors and switch to the vehicle seat belt for installation — the top tether is unaffected and can still be used.
Why the limit exists
The lower anchor hardware in a vehicle is engineered to a specific load limit. Above roughly 65 lb combined, the anchors can be overloaded in a crash, so NHTSA's rule requires a warning label on child restraints stating the combined-weight cutoff and directs parents to switch to the vehicle's seat belt for installation past that point.
What stays the same above 65 lb
The top tether strap -- used with forward-facing seats to limit forward head movement in a crash -- attaches to a separate anchor point and is not affected by the 65 lb lower-anchor limit. It generally continues to be used whether the seat is installed with LATCH or a seat belt.
Always follow your product's manual and current CPSC/NHTSA guidance; this page summarizes published standards and is not a substitute for them.
Frequently Asked Questions
65 lb combined -- the child's weight plus the car seat's own weight together. Once that combined total reaches 65 lb, NHTSA guidance says to stop using the LATCH lower anchors and switch to installing with the vehicle's seat belt instead.
Yes -- it's the combined weight of the child AND the car seat, not just the child. A heavier seat reaches the limit with a lighter child, and vice versa.
The combined-weight labeling requirement took effect in February 2014, following an NHTSA rule on child restraint systems.
No. The top tether (used with forward-facing seats) is a separate anchor point and is not subject to the 65 lb lower-anchor limit -- it can generally continue to be used with either LATCH or a seat belt installation.