Which class of uniform is recognized as the duty uniform?

The duty uniform for the Houston Fire Department is identified as Class B. This uniform is designed for daily activities and typical operational tasks that firefighters may encounter during their shifts. Class B uniforms are functional and practical, providing a balance between professionalism and comfort, allowing firefighters to perform their duties effectively.

In contrast, Class A uniforms are formal dress uniforms typically worn during ceremonial events or official functions, while Class C uniforms may include specialized gear for different operations, and Class D usually refers to off-duty or training attire. Hence, the distinction lies in the purpose and usage of each uniform class, with Class B being specifically designated for everyday work duties.