Completing and signing this form is Step 1 of the vendor registration process. To bid on a Professional Services contract, you must register with eContract Philly.To register, you'll need: Your tax ID number. Non-Procurement vendors cannot self-certify as a small, diverse business or place bids. To fill out this document, gather your business details and funding information. Carefully read the terms and conditions laid out in each section. The vendor must download the Vendor Agreement from the attachment tab, fill in the requested information and upload the completed agreement. Participating employees shall not impair an existing contract for services or collective bargaining agreement, and no such activity that would be inconsistent. If you are interested in doing business with the Parking Authority, please complete the vendor registration form linked below. Vendor Registration Form.