What guidelines should be followed during CNG refueling?

Proper ventilation is a critical guideline to follow during CNG refueling. Compressed natural gas is flammable, and while it is lighter than air and dissipates quickly in the atmosphere, ensuring adequate ventilation helps mitigate the risks associated with any potential leaks or the buildup of gas in an enclosed space. Proper airflow can prevent hazardous situations that could arise from gas accumulation, enhancing the safety of both the refueling process and the surrounding environment.

On the other hand, monitoring fuel prices, although relevant to cost management, does not impact safety or operational procedures during the actual refueling process. Using public transport during refueling is unrelated to the actual CNG refueling guidelines and does not provide any safety benefits. Ignoring posted instructions can lead to dangerous situations and should never be done, as these instructions are typically established to ensure safe and efficient refueling practices.