Tex. Bus. & Com. Code § 15.52 : BUSINESS AND COMMERCE CODE — COMPETITION AND TRADE PRACTICES — MONOPOLIES, TRUSTS AND CONSPIRACIES IN RESTRAINT OF TRADE — COVENANTS NOT TO COMPETE — Preemption of Other Law

The criteria for enforceability of a covenant not to compete provided by Section 15.50 of this code and the procedures and remedies in an action to enforce a covenant not to compete provided by Section 15.51 of this code are exclusive and preempt any other criteria for enforceability of a covenant not to compete or procedures and remedies in an action to enforce a covenant not to compete under common law or otherwise.