16 CFR §1203.10 — Selecting the test headform.
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
A helmet shall be tested on the smallest of the headforms appropriate for the helmet sample. A headform size is appropriate for a helmet if all of the helmet's sizing pads are partially compressed when the helmet is equipped with its thickest sizing pads and positioned correctly on the reference headform.