Which type of permit is most appropriate for a permanent gas operation at a single location?

The most appropriate permit for a permanent gas operation at a single location is the site-specific permit. This type of permit is designed to address the unique characteristics and specific requirements of a particular site where the operations will take place. It ensures that all safety, environmental, and regulatory considerations pertinent to that specific location are taken into account.

In the context of gas operations, a site-specific permit allows for tailored guidelines and safety protocols that match the equipment being used, the nature of the environment, and any potential risks associated with those operations. This specificity is essential for maintaining safety standards and regulatory compliance in a permanent setup, as opposed to more general permits which may not adequately address site-specific risks.

The other types of permits—citywide, transportation, and temporary—do not align with the requirements for a permanent gas operation. A citywide permit would cover a broad area rather than a specific site, while a transportation permit is focused on the movement of materials rather than stationary operations. A temporary permit is typically used for short-term projects or operations, which would not be suitable for a permanent operation.