|(a) A practitioner, as defined in the TCSA, §481.002(39)(A),
(C), and (D), may use prescription forms ordered through individual
sources or through an electronic prescription that includes the controlled
substances registration number issued by the United States Drug Enforcement
Administration and meets all requirements of the TCSA.
(b) If a written prescription form is to be used to
prescribe a controlled substance the dispensing practitioner must
be registered with the DEA under both state and federal law to prescribe