According to The Handbook of Texas Online, "In 1933 the legislature passed a law establishing rules for the proper display of the flag and providing for a pledge to the flag:
"Honor the Texas Flag of 1836; I pledge allegiance to thee, Texas, one and indivisible."
The pledge erroneously referred to the 1836 national flag, known as David G. Burnet's flag, instead of the Lone Star Flag. Senator Searcy Bracewell introduced a bill to correct this error in 1951, but the legislature did not delete the words "of 1836" until 1965."
House Bill No. 1034 was passed by the Texas House of representatives on May 4, 2007. What took over three months to pass in the House, took only a little more than three weeks to pass through the Senate. Governor Rick Perry signed the legislation on June 16, 2007.
The law designating the official Texas state pledge is found in the Texas Statutes, Government Code, Title 11, Subchapter C, Sections 3100.101-3100.104.
TITLE 11. STATE SYMBOLS AND HONORS; PRESERVATION
SUBTITLE A. STATE SYMBOLS AND HONORS
CHAPTER 3100. STATE FLAG
SUBCHAPTER A. GENERAL PROVISIONS
§ 3100.101. Pledge
The pledge of allegiance to the state flag is: "Honor the Texas flag; I pledge allegiance to thee, Texas, one and indivisible."
Added by Acts 2001, 77th Leg., ch. 1420, § 7.001, eff. Sept. 1, 2001.
§ 3100.102. Occasions at Which Pledge May be Recited
The pledge of allegiance to the state flag may be recited at any:
(1) public or private meeting at which the pledge of allegiance to the United States flag is recited; and
(2) state historical event or celebration.
Added by Acts 2001, 77th Leg., ch. 1420, § 7.001, eff. Sept. 1, 2001.
§ 3100.103. Order of Recitation
The pledge of allegiance to the flag of the United States should be recited before the pledge of allegiance to the state flag if both are recited.
Added by Acts 2001, 77th Leg., ch. 1420, § 7.001, eff. Sept. 1, 2001.
§ 3100.104. Reciting Pledge
If the pledge to the state flag is recited, each person who is present and:
(1) not in uniform should:
(A) face the state flag and stand at attention with the person's right hand over the heart;
(B) if wearing a head covering that is easy to remove, remove that head covering with the right hand and hold it at the person's left shoulder, with
the person's hand over the heart; and
(C) recite the pledge; or
(2) in uniform should remain silent, face the flag, and make the military salute.
Added by Acts 2001, 77th Leg., ch. 1420, § 7.001, eff. Sept. 1, 2001.