Which information is not required on a mechanical permit application?

The correct choice regarding what information is not required on a mechanical permit application is the installation date of the equipment. Permit applications typically focus on essential details necessary for evaluating the proposed work and ensuring compliance with local codes and regulations.

Including the address of the work site is crucial because it allows the authorities to verify property ownership, zoning restrictions, and local ordinances that may pertain to the project. The licensed mechanical contractor’s license number is also a key requirement, as it authenticates that the contractor holds the necessary credentials to perform mechanical work and ensures the quality and safety standards are met. Similarly, the expiration date of the contractor's license number provides assurance that the contractor is currently in good standing and legally allowed to carry out the work.

In contrast, specifying a date for when the equipment will be installed does not directly relate to the permit's validity or compliance with safety and construction standards, making it unnecessary information for the application process.