One should consult the TAC after surveying secondary sources, statutes, and the CFR, particularly if the secondary sources and Texas statutes are unclear regarding Texas regulations.
The TAC is also located online via the subscription databases Lexis Advance and WestlawNext. On WestlawNext, find the TAC by clicking on "Regulations" then "Texas".
In print at the Tarlton Law Library, the TAC is located in the main reading room on the 2nd floor.
The hierarchy and terminology of the TAC's organization varies slightly from the CFR:
Title > Part > Chapter > Subchapter > Section
Title 7. Banking and Securities
Part 5. Office of Consumer Credit Commissioner
Chapter 86. Retail Creditors
Subchapter A. Registration of Retail Creditors
§ 86.101. Consumer Notifications
Only the title, chapter, and section are referenced in a citation: 7 Tex. Admin. Code § 86.101.
Similar to the CFR, regulations laid out in the TAC provide Tex. Reg. citations that originally published the final rule. For instance, with the above example, its "Source Note" states: "The provisions of this §86.101 adopted to be effective November 9, 2006, 31 TexReg 9017." (Unlike the CFR, there is not a consistent provision of an authority note as well for finding the enabling statute.) Look for these Tex. Reg. citations if you wish to compile a regulatory history.
Ways to Research Regulations
There are several ways to search the TAC.
The Secretary of State-maintained website is possibly the best place to research Texas regulations. This version is updated regularly and is easily searchable, while the Lexis and Westlaw versions can be difficult to navigate. The print version is another good resource because of its index; however, the index is only updated annually.