A U.S. senator is leading the charge to have the Federal Trade Commission investigate "misleading safety claims and deceptive practices" in the selling of new and used reconditioned football helmets.

In a letter to the FTC, Tom Udall, the Democratic senator from New Mexico, charges that helmet companies "appear to be using misleading advertising claims" and that "some helmet reconditioning companies may be falsely selling used helmets as meeting an industry safety standard."