The Texas Administrative Code is the official compilation of every regulation adopted by Texas state agencies, organized into 17 subject-area titles and published online for free by the Secretary of State.1Office of the Texas Secretary of State. Texas Administrative Code If a state agency regulates your profession, business, property, or activity, the specific rules you have to follow live here.
How the Code Is Organized
The code moves from broad to specific in four layers. At the top sit 17 titles, each covering a major subject area. Within a title, the code splits into Parts assigned to specific agencies, then Chapters and Subchapters grouping rules by program, and finally the individual Rules with the actual regulatory text.1Office of the Texas Secretary of State. Texas Administrative Code
The 17 titles are:2Legal Information Institute (Cornell Law School). Texas Administrative Code – State Regulations
- Title 1: Administration
- Title 4: Agriculture
- Title 7: Banking and Securities
- Title 10: Community Development
- Title 13: Cultural Resources
- Title 16: Economic Regulation
- Title 19: Education
- Title 22: Examining Boards
- Title 25: Health Services
- Title 26: Health and Human Services
- Title 28: Insurance
- Title 30: Environmental Quality
- Title 31: Natural Resources and Conservation
- Title 34: Public Finance
- Title 37: Public Safety and Corrections
- Title 40: Social Services and Assistance
- Title 43: Transportation
The numbers skip. Gaps between titles leave room for future subject areas instead of forcing a renumbering later.
Citations pair the title number with the rule number, separated by “TAC.” So 30 TAC ยง290.44 points to Title 30 (Environmental Quality), Rule 290.44. Once the pattern clicks, you can jump straight to any rule you have a citation for.
How to Search the Code
The Secretary of State hosts the full code online at no cost, with rules in effect from January 1, 1999 through the present.1Office of the Texas Secretary of State. Texas Administrative Code There are two practical ways in.
If you already have a citation, enter the title and rule number directly. If you are exploring a topic without a specific citation, browse by title to drill down through the hierarchy, or run a keyword search for rules containing particular terms. Each rule’s display includes historical notes showing when it was adopted and any amendments it has gone through, which lets you track how a regulation has evolved. Many rules also carry cross-references pointing to related provisions and the statute authorizing them, so you can trace a regulation back to the legislation behind it.
Cornell Law School hosts a browsable copy of the code organized by title, which is useful as a backup if the Secretary of State’s site is down.2Legal Information Institute (Cornell Law School). Texas Administrative Code – State Regulations
One limit worth knowing: the codified version lags. For proposed rules and recent changes not yet incorporated into the code, check the Texas Register, which publishes weekly on Fridays.3Legal Information Institute (Cornell Law School). 1 Texas Administrative Code 91.6 – Publication Deadlines If you are tracking a rulemaking in progress, that is where the proposal notice, comment timeline, and final adoption order appear first.
Where These Rules Come From and What They Can Do
The Texas Legislature writes statutes, then delegates the technical details to state agencies with the expertise to handle them. An agency’s authority to create, amend, and enforce regulations comes from the Administrative Procedure Act, codified in Chapter 2001 of the Texas Government Code.4Justia. Texas Government Code Chapter 2001 – Administrative Procedure
Properly adopted rules carry the force of law. Depending on the agency and the violation, consequences can run from administrative penalties and fines to license revocation for regulated professionals. The specific enforcement provisions sit inside the title and chapter governing your industry, so that is where to look if you want to know what noncompliance actually costs.
There is a hard limit on agency authority. A rule is only valid if it stays within what the legislature authorized. When an agency overreaches, the rule can be challenged in court and struck down, through the mechanism described further below.
How a Rule Gets Made
Texas rulemaking follows a structured sequence under the APA. Agencies that skip steps risk having their rules invalidated, which is why the process is worth understanding whether you want to influence a pending rule or challenge one later.
Proposal and Notice
An agency drafts proposed language and files a notice with the Secretary of State for publication in the Texas Register. The notice has to include the full text of the proposed rule, a statement of its purpose, the statutory authority the agency is relying on, a fiscal note covering the first five years, and a public benefits and costs analysis for the same period.5State of Texas. Texas Government Code 2001.024 – Content of Notice A plain-language summary in English and Spanish also has to be posted on the agency’s website.6State of Texas. Texas Government Code 2001.023 – Notice of Proposed Rule
Your Window to Comment
After notice runs, the agency has to wait at least 30 days before adopting the rule.6State of Texas. Texas Government Code 2001.023 – Notice of Proposed Rule During that period, anyone can submit written comments. The notice must invite them.
Public hearings are not automatic. The agency must hold one if at least 25 people request it, or if a governmental body or an association with at least 25 members asks. The threshold is low enough that even a small organized group can force an in-person hearing.
Adoption
When comments close, the agency prepares a formal adoption order. That order must contain a reasoned justification: a summary of the comments received, a factual basis showing a rational connection between the evidence and the rule as adopted, and the agency’s reasons for disagreeing with any objection it did not accept.7State of Texas. Texas Government Code 2001.033 – State Agency Order Adopting Rule The order must also certify that legal counsel confirmed the final rule falls within the agency’s authority.
The practical takeaway: an agency cannot ignore your substantive comment and adopt the rule unchanged without explaining itself. If it cannot articulate why it rejected your objection, the adoption order is vulnerable on judicial review.
Emergency Rules
When an imminent threat to public health, safety, or welfare demands faster action, or when state or federal law requires it, an agency can adopt an emergency rule without the standard notice-and-comment process.8State of Texas. Texas Government Code 2001.034 – Emergency Rulemaking
The tradeoff is a strict shelf life. An emergency rule lasts no more than 120 days and can be renewed only once, for an additional 60 days. To make it permanent, the agency has to run it through the full rulemaking process. The emergency justification has to be stated in writing in the rule’s preamble and published in the Texas Register.
Asking an Agency to Create or Change a Rule
You do not have to wait for an agency to act on its own. Under the Government Code, any interested person can petition a state agency to adopt, amend, or repeal a rule.9State of Texas. Texas Government Code 2001.021 Each agency sets its own petition form and procedures for considering requests.
A petition does not guarantee action, and there is no fixed deadline for a response. What it does is create a formal record. If a well-supported request goes nowhere without explanation, that silence becomes part of any later legal or political argument for change. Industry groups and advocacy organizations use the petition tool routinely, but individuals have the same right.
Challenging a Rule in Court
When an agency rule exceeds its statutory authority or was adopted through flawed procedures, Section 2001.174 of the Government Code opens a path to judicial review. A court will reverse or send back an agency decision if your substantial rights were prejudiced for any of these reasons:10State of Texas. Texas Government Code 2001.174 – Review Under Substantial Evidence Rule or Undefined Scope of Review
- The rule violates the Texas Constitution or a state statute.
- The agency exceeded the authority the legislature gave it.
- The agency failed to follow required rulemaking procedure, such as the notice-and-comment steps.
- Another legal error affected the outcome.
- The rule is not reasonably supported by substantial evidence in the record.
- The agency acted arbitrarily or capriciously.
The court will not substitute its own judgment on factual questions. Review focuses on whether the agency acted within legal bounds and had a rational basis for what it did. Disagreement with the policy is not enough; you have to show that the rule broke a legal rule of its own, lacked evidentiary support, or was adopted through a defective process. This is also why building a strong record during the public comment period matters. The evidence you submitted, and the agency’s response to it, becomes part of what the court reviews.