During driving services, participants must wear:

Participants in driving services are required to wear an ASTM-SEI or international equivalent equestrian helmet due to the specific safety standards that apply to equestrian activities. These helmets are designed to provide the necessary protection for the head in case of falls or impacts while interacting with horses or during driving tasks. They are rigorously tested for safety and incorporate features that help prevent head injuries in ways that are relevant to equestrian sports.

Choosing an ASTM-SEI or its international equivalent ensures that the helmet meets established safety regulations and provides adequate protection, as opposed to helmets designed for other activities such as bicycles or construction, which may not offer the same level of protection needed in equestrian contexts. This distinction is crucial because the nature of driving services involves risk factors unique to working with horses, necessitating the use of proper protective gear specifically designed for that environment.