Is it acceptable for a vehicle to lack a tailpipe muffler?

A vehicle must have a functional tailpipe muffler as part of its exhaust system to pass inspection. The role of the muffler is to reduce noise from the engine's exhaust. In New Hampshire, vehicles are required to meet specific emissions and noise standards, and lacking a muffler directly violates these regulations. Therefore, a vehicle without a tailpipe muffler is not compliant and will be rejected during the inspection process. Having a muffler is essential not just for noise control, but also for the proper functioning of the exhaust system, ensuring that exhaust gases are directed safely away from the vehicle and are treated in accordance with environmental standards.