Texas Business Organizations Code - BUS ORG § 153.004. Nonwaivable Title 1 Provisions

(1) Chapter 1, if the provision is used to interpret a provision or define a word or phrase contained in a section listed in this subsection;

(2) Chapter 2, other than Section 2.104(c)(2), 2.104(c)(3), or 2.113;

(3) Chapter 3, other than Subchapters C and E   2 of that chapter and Section 3.151 (provided, that in all events a partnership agreement may not validly waive or modify Section 153.551 or unreasonably restrict a partner's right of access to books and records under Section 153.552);  or

(4) Chapter 4, 5, 10, 11, or 12, other than Section 11.058.

(1) the person or group of persons who are entitled to approve a modification;  or

(2) the vote or other method by which a modification is required to be approved.