Tarrant County Courts at Law. 13. Enclosures. An enclosure can prevent a letter from becoming too detailed.To complete the valuation of the large volume of properties in Tarrant County the TAD Residential Department utilizes mass appraisal. The envelope should include only the form and any instructions on how to complete the form or where to send the completed form. Complete page 1 of this form and submit the following to a TxDMV Regional Service Center: 1. Complete and sign the form in the presence of the law librarian. The form and any instructions will not be given to the inmate. Registering your out-of-state custody orders means Texas courts may be able to enforce or change the orders. An example of a ROE letter is given in the references below. Used to build the enclosure in the enclosure's data pocket.