Tex. Business Organizations Code § 2.107

(a) Notwithstanding any conflicting provision of this chapter, Chapter 3, or the certificate of formation and except as provided by Subsection (b), the certificate of formation of each corporation that is a private foundation as defined by Section 509, Internal Revenue Code, is considered to contain the following provisions: "The corporation shall make distributions at the time and in the manner as not to subject it to tax under Section 4942 of the Internal Revenue Code of 1986; the corporation shall not engage in any act of self-dealing which would be subject to tax under Section 4941 of the Code; the corporation shall not retain any excess business holdings which would subject it to tax under Section 4943 of the Code; the corporation shall not make any investments which would subject it to tax under Section 4944 of the Code; and the corporation shall not make any taxable expenditures which would subject it to tax under Section 4945 of the Code."

(b) A nonprofit corporation described by Subsection (a) may amend the certificate of formation of the corporation to expressly exclude the application of Subsection (a).