Information in this system is from the following sources:
- Bill captions and articles affected come from the General and Special Laws of Texas.
- Bill authors come from House and Senate journals.
- Bill numbers for the earliest sessions (16th - 20th Legislatures) come from the original bill files at the Texas State Library and Archives.
- Election dates and vote totals come from the General and Special Laws of Texas and the Texas Secretary of State.
- The total number of amendments adopted and defeated comes from Amendments to the Texas Constitution since 1876 (Texas Legislative Council) and the Texas Secretary of State.
Information on this website is provided as a public service by the Legislative Reference Library. The Legislative Reference Library makes no representation as to its completeness or accuracy and makes no warranty in regard to its use. Users assume all risk of reliance on the information included on this site.