Retailers engaged in business in California must register with the California Department of Tax and Fee Administration (CDTFA) and pay the state's sales tax. To access the forms below, you will need Adobe Acrobat Reader.As agent for the Agency, the Agent agrees that it will present to each seller or vendor a completed and signed NYSDTF Form ST-123 "IDA Agent or Project Operator. All companies doing business within the City of Los Angeles need to obtain a Business Tax Registration Certificate from the city. It's easy to do online. This form is required whenever a property owner grants authority to another individual to sign on their behalf when obtaining a permit. Airline Name: Flight Number: Date: In order for your complaint to be considered complete, you must file within 180 days of the alleged act of discrimination. The Department strongly recommends that travelers notify hotels of their tax-exempt status in advance of their stay. Explain your reason in a letter. If applicants apply online, they do not need fill out IRS Form SS-.