Final answer:
Emergency lighting on new fire apparatus, as per NFPA standards, should include right of way and blocking patterns to ensure visibility and safety during different stages of an emergency response.
Step-by-step explanation:
According to NFPA standards, emergency lighting on new fire apparatus should have two modes of emergency lighting: right of way and blocking patterns. This distinction is crucial for fire apparatus as they perform various functions on the scene of an emergency. Right-of-way lighting mode is designed to provide maximum visibility and urgency when the apparatus is en route to an incident. Blocking patterns are used when the vehicle is stationary and firefighters are working on the scene, to alert oncoming traffic and provide a safe working environment.