Find out what permits or licenses you need for an activity or project, and pay any tickets or violations you owe. Appeal a denied residential parking spot for people with disabilities Appeal a denied request for reserved residential on-street parking for people with disabilities. Apply for a trade license Identifying and getting the necessary trade license to do business in Philadelphia. Dispute a Code Violation Notice Request a hearing or a review for a Code Violation Notice. Dispute a parking ticket Instructions on how to appeal a parking ticket in person, by mail, or online. Dispute a red light camera ticket How to dispute a red light camera ticket by mail or by phone. Dispute an Excess False Alarm Fine How to dispute an Excess False Alarm Fine that you think is in error. 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 business or trade license Information on business and trade licenses and how to apply. 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. Pay a Code Violation Notice Pay the fine for code violations. Pay a parking ticket Accepted methods of payment for parking tickets. Pay a red light ticket Information on how to pay red light tickets. Pay an Excess False Alarm Fine Pay the fee for an Excess False Alarm Fine. Plan a block party Guidelines and resources for planning a block party in Philadelphia. Register a burglar alarm / Pay the annual fee Information about how to register your burglar alarm and pay the annual fee. 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. 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. City building codes A summary of City building codes, and a link to the complete code.