Permits, violations & licenses Apply for a trade license Dispute a parking ticket Dispute a red light ticket Find out what license you need for your business Get a building permit Get a Certificate of Occupancy Get a commercial activity license Get a gun license Get a license for your dog Get a marriage license Look up a business license Look up permits for a property Pay a parking ticket Pay a red light ticket Plan a block party Rent your property Report a building code violation Reserve a recreation or parks facility City building codes Find out what permits or licenses you need for an activity or project, and pay any tickets or violations you owe. Apply for a trade license Identifying and getting the necessary trade license to do business in Philadelphia. Dispute a parking ticket Instructions on how to appeal a parking ticket in person, by mail, or online. Dispute a red light ticket Information on how to dispute a red light ticket online, by mail, or by phone. Find out what license you need for your business Information and tools to help you determine which licenses and permits you need for your business. Get a building permit Instructions for finding and obtaining the permits you need for a building or construction project. Get a Certificate of Occupancy Instructions on applying for a Certificate of Occupancy, which is required by the City for some construction projects. Get a commercial activity license Instructions for getting a commercial activity license, which is required in order to conduct business in 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. Get a marriage license Requirements, fees, and instructions for obtaining a marriage license from the City of Philadelphia. Look up a business license A tool to look up business licenses by name. Look up permits for a property How to find permits, licenses, violations, and appeals associated with a property in Philadelphia. Pay a parking ticket Accepted methods of payment for parking tickets. Pay a red light ticket Information on how to pay red light tickets. Plan a block party Guidelines and resources for planning a block party in Philadelphia. Rent your property Describes how to get a certificate of rental suitability, which the City requires from people who rent out their property. Report a building code violation Directions for reporting a building code violation through Philly311 or an online form. Reserve a recreation or parks facility Information on how to reserve a space or facility in a Philadelphia park or recreation area. City building codes A summary of City building codes, and a link to the complete code.