Under what condition may a vapor recovery nozzle dispense at a rate greater than 10 gallons per minute?

• A. Under no condition
• B. Only if local air district permits it
• C. Only if the vapor recovery system includes a vapor processor
• D. Only if the vehicle fuel tank has capacity greater than 10 gallons

Answer: (A)

The correct response indicates that a vapor recovery nozzle cannot dispense at a rate greater than 10 gallons per minute under any circumstances. This limitation is in place to ensure the proper functioning of the vapor recovery system and to minimize the risk of vapor loss, which can negatively impact air quality and public health.

The design and regulation surrounding vapor recovery nozzles are aimed at controlling the emissions of volatile organic compounds (VOCs) that can escape during the refueling process. When the dispensing rate exceeds this limit, it can lead to inefficient vapor recovery, potentially resulting in excess vapors being released into the atmosphere. Therefore, strict adherence to the guideline that limits the dispensing rate is crucial for compliance with environmental regulations and for maintaining system integrity.

The other options imply conditions under which the nozzle might dispense more than the specified rate; however, these do not align with current regulations, underscoring the importance of maintaining the 10 gallons per minute cap to protect the environment effectively.