The Parties to a contested case may engage in any type of discovery authorized by the Texas Rules of Civil Procedure and the APA. The manner and procedure for engaging in such discovery, including, but not limited to deadlines to object or respond to discovery requests, shall be the manner and procedure specified in the Texas Rules of Civil Procedure or the APA, whichever is applicable. Unless otherwise ordered, or the Parties otherwise agree pursuant to § 67.11 of this chapter (relating to agreements to be in writing), discovery level 1 shall apply as defined in Tex. R. Civ. P.190.2.
34 Tex. Admin. Code § 67.107