Tex. Bus. Orgs. Code § 402.004
(a) A foreign filing entity registered with the secretary of state to transact business in this state before the effective date of this code may voluntarily elect to adopt and become subject to this code by filing with the secretary of state in accordance with Chapter 4:
(b) A foreign filing entity that elected to adopt and become subject to this code as provided by Subsection (a) is not considered to have failed to comply with Subsection (a)(2) because:
(1) the application for registration or any amendment to the registration:
Acts 2003, 78th Leg., ch. 182, Sec. 1, eff. Jan. 1, 2006.
Acts 2011, 82nd Leg., R.S., Ch. 139 (S.B. 748), Sec. 60, eff. September 1, 2011.