How many extensions can a code official grant on an application for a permit?

The correct choice indicates that a code official can grant one or more extensions on an application for a permit. This flexibility is important to accommodate various circumstances that may arise during the permitting process. For instance, applicants might encounter unforeseen delays or require additional time to gather the necessary documentation.

Allowing for one or more extensions helps ensure that applicants have a fair opportunity to comply with the requirements without feeling rushed or pressured, ultimately promoting better compliance and safety standards within plumbing practices. This approach aligns with the intent of the International Plumbing Code to facilitate proper permit processes while maintaining oversight and ensuring regulations are met.

The other responses suggest limitations that do not reflect the broader discretion granted to code officials in the above context. Specifically, stating "no more than one" or "only a single extension" unnecessarily restricts the ability of the code official to respond to varying situations. Meanwhile, "up to three" places an arbitrary cap that doesn’t align with the encouragement of flexibility inherent in the permitting process.