Although registration for business or trademarks is not legally required in the State of Arizona, you may record your Fictitious Name Statement or Trade Name in the office of the Recorder. Recording your name will only give constructive notice to the public that you are doing business under that name. It will not register your business or guarantee that someone else will not use that name or does not already do business under that name. For more information on registering your business name, you may contact the Arizona Secretary of State Office or the Arizona Department of Commerce. If you have additional questions on corporations, partnerships, or LLCs, please contact the appropriate agencies that handle those entities or an attorney.