37 Tex. Admin. Code § 13.24
A person is exempt from registration, need not register, and may lawfully possess a controlled substance under the Act if the person is:
Source Note:The provisions of this §13.24 adopted to be effective July 18, 2001, 26 TexReg 5266; amended to be effective October 28, 2007, 32 TexReg 7490.