Tx sex offender registration. Historical Commission. Veteran Services. Precinct 3 William P. Users may only access this site with an assigned User ID. Within seven days after completing a registration form, you must report back to the law enforcement authority, with proof of identity and residence, and sign the form as verification of its accuracy. You may have to register - even if you are not convicted. Incorporated Areas. How long will I have to register as a sex offender for in Texas? Texas Agrilife Extension. Contact Us. Real Estate Search. Criminal District Attorney. County Telephone Operator Tarrant County provides the information contained in this web site as a public service.