What are the possible US Customs requirements for the importation of sunglasses?
Due to the harm in which sunglasses could cause if the lens were to shatter, the FDA requires that you submit specific test results. The test results that are required are a drop ball test certificate, stating a statistically significant sample of the lenses from each production batch were tested for resistance to breakage.
NOTE: All details pertaining to CARM R2 processes are based on the current information available at the time of writing. As this is subject to change, it’s recommended you periodically check in with the CBSA or your customs broker.