19 Tex. Admin. Code § 231.79
An assignment in a departmentalized classroom for Career and College Exploration, Grades 6-8, for a holder of a valid secondary or all-level certificate is allowed with a Technology Applications: Early Childhood-Grade 12 certificate, a Technology Applications: Grades 8-12 certificate, a Mathematics/Physical Science/Engineering: Grades 6-12 certificate, a Mathematics/Physical Science/Engineering: Grades 8-12 certificate, and any vocational or career and technical education classroom teaching certificate specified in § 233.13 of this title (relating to Career and Technical Education (Certificates not requiring experience and preparation in a skill area)) or § 233.14 of this title (relating to Career and Technical Education (Certificates requiring experience and preparation in a skill area)).
19 Tex. Admin. Code § 231.79