Get a license Find out how to get the licenses you need to run your business, practice a trade, and more. Get a marriage license Requirements, fees, and instructions for obtaining a marriage license from the City of Philadelphia. 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. 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. Business licenses, permits, and approvals Find out how to get the licenses, permits, and approvals you need to run your business. 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.