Tex. R. Disc. Prof'l. Cond. 9.01
If any provision of these rules or any application of these rules to any person or circumstances is held invalid, such invalidity shall not affect any other provision or application of these rules that can be given effect without the invalid provision or application and, to this end, the provisions of these rules are severable.
Tex. Disc. R. Prof. Cond. 9.01
Comment:
The history of the regulation of American lawyers is replete with challenges to various rules on grounds of unconstitutionality. Because many of these Rules, particularly those in Article Vll, are interrelated to an extent, the voiding of a particular rule or of a single provision in a rule could raise questions as to whether other provisions should survive. Rule 9.01 makes it clear that these Rules should be construed so as to minimize the effect of a determination that a particular application or provision of them is unconstitutional. The process of amending the Texas Disciplinary Rules of Professional Conduct is unusually difficult and time consuming and a decision invalidating one provision or application of a rule should not be expanded unnecessarily so as to invalidate other provisions or applications. These Disciplinary Rules have the specificity found in statues, and it is appropriate for Rule 9.01 to contain a provision, frequently found in legislation, that reasonably limits the effect of the invalidity of one provision or one application of a rule.