Texas Occupations Code - OCC § 1051.801. Criminal Penalty

(1) engages in the practice of architecture, or offers or attempts to engage in the practice of architecture;

(2) prepares architectural plans or specifications for and observes or supervises the construction, enlargement, or alteration of a building for another person;  or

(3) advertises or puts out a sign, card, or drawing designating the person as an architect or architectural designer or uses another business or professional title that uses a form of the word “architect.”