Helmet standards are guidelines that ensure helmets provide adequate protection for users. These standards are developed by organizations such as the American National Standards Institute (ANSI) and the Snell Memorial Foundation. They test helmets for impact resistance, penetration, and retention system effectiveness, ensuring they meet specific safety criteria. Different types of helmets, such as those for bicycling, motorcycling, and construction, have unique standards tailored to their intended use. Compliance with these standards helps consumers choose helmets that will effectively protect them in case of accidents or falls, reducing the risk of serious injuries.