Tex. Est. Code § 306.001
ISSUANCE OF LETTERS
(a) Before the 21st day after the date a will has been probated, the court shall grant letters testamentary, if permitted by law, to each executor appointed by the will who:
Added by Acts 2009, 81st Leg., R.S., Ch. 680 (H.B. 2502), Sec. 1, eff. January 1, 2014.