Get a license Find out how to get the licenses you need to run your business, practice a trade, and more. Business licenses, permits, and approvals Find out how to get the licenses, permits, and approvals you need to run your business. Get a gun license Application and instructions for getting a gun license in Philadelphia. Get a license for your dog Rules and instructions for getting a dog license in Philadelphia. Get a marriage license Requirements, fees, and instructions for obtaining a marriage license from the City of Philadelphia. Search for property history and business license information Search for information on a property's trade licenses, violations, and permits or search for business license information. Trade licenses Get a license to do trade work in Philadelphia. Use eCLIPSE to apply for licenses How to use eCLIPSE to get or renew licenses, permits, and certificates.