Certified Mail: If a request is made for service of citation by registered or certified mail,
the clerk shall provide this service, but may not charge the fee for service
charged by the sheriff or constable. We charge an additional $5.21 or current
certified mail fee. Put in collection record grid CERT to receipt.
Request must be made in writing. (Op. Tex Atty. Gen. No. DM-250 1993)