Final answer:
The Slow-Moving Vehicle (SMV) emblem, with a fluorescent orange triangle and reflective red border, identifies vehicles that travel at 25 mph or less.
Step-by-step explanation:
The emblem that identifies vehicles which travel at speeds of 25 mph or less is known as the Slow-Moving Vehicle (SMV) emblem. This emblem is highly recognizable and is designed to alert other road users to the presence of a vehicle that moves at slower speeds, such as agricultural or construction equipment. The SMV emblem consists of a fluorescent orange triangle with a reflective red border and is meant to be displayed on the back of the vehicle, where it is clearly visible to others on the road.