Yes. Under Texas law, mobile food units, including food trucks, trailers, and pushcarts, follow the same Texas Food Establishment Rules (TFER) as traditional restaurants. Every employee working in a Texas food truck who handles open food, ice, utensils, or cooking equipment must hold a valid Texas Food Handlers Card.
A food truck is treated as a Mobile Food Unit and registered with Texas DSHS, so there is no lighter rulebook for going mobile: the same food handling, temperature-control, and sanitation standards apply. That means your crew needs the same accredited (DSHS License #16) food handler training as any restaurant kitchen.
Inspectors watch mobile units closely because of the tight working quarters and the refrigeration challenges of cooking on wheels. Having every team member certified keeps the truck compliant during random spot-checks at festivals, food parks, and events.
Keep your truck rolling and bypass inspector headaches.