As most readers have probably noticed, we are going through a particularly complex period with respect to determining LATCH weight limits. Most CPSTs have heard about upcoming changes in FMVSS 213 regarding lower anchor weight limits. NHTSA has ruled that, by next February or sooner, CRs must have instructions and labels limiting use of the lower attachment system to a child weight specific to each CR model. This weight limit is to be calculated based on the formula “65 pounds minus the CR weight.” Keeping things interesting, this final rule is under further review, and NHTSA may or may not announce a modification to it in coming weeks. Though this ruling pertains to CRs only, many vehicle manufacturers indicate in the 2013 LATCH Manual* ((The most current LATCH Manual is the 2019 edition; outdated versions should not be used.)) that they have adopted this same formula to express lower anchor limits (and tether anchor limits, too, in some cases). So this limit now applies to about half of all vehicle brands.
Read More from “The Mental Acrobatics Needed to Apply LATCH Weight Limits”