While you can look up a car’s crash-test ratings by the National Highway Traffic and Safety Administration, you can’t do the same for infant car seats. All infant child seats sold in the U.S. meet the safety and performance requirements defined in the Federal Motor Vehicle Safety Standards (FMVSS 213) that govern child restraint systems, which means they all passed tests that simulate frontal collisions up to 30 mph, but aren’t graded. There isn’t an easily searchable database to view these Pass/Fail test results, and instead most manufacturers promote impact protection performance results from their independent testing. However, NHTSA analyzes labels, instructions, features and installation and scores on a five-star rating scale to give parents an idea of a seat’s usability.