(a) Subject to the requirements in subsection (b) of this section, an assignment for Principles of Technology, Grades 9-12, is allowed with one of the following certificates.(1) Legacy Master Science Teacher (Grades 8-12).(2) Mathematics/Physical Science/Engineering: Grades 6-12.(3) Mathematics/Physical Science/Engineering: Grades 8-12.(4) Physical Science: Grades 6-12.(5) Physical Science: Grades 8-12.(6) Physics/Mathematics: Grades 7-12.(7) Physics/Mathematics: Grades 8-12.(8) Science: Grades 7-12.(9) Science: Grades 8-12.(10) Secondary Industrial Arts (Grades 6-12).(11) Secondary Industrial Technology (Grades 6-12).(12) Secondary Physics (Grades 6-12).(13) Secondary Science, Composite (Grades 6-12).(14) Technology Education: Grades 6-12.(15) Trade and Industrial Education: Grades 6-12. This assignment requires appropriate work approval.(16) Trade and Industrial Education: Grades 8-12: This assignment requires appropriate work approval.(17) Trade and Industrial Workforce Training: Grades 6-12. This assignment requires appropriate work approval.(b) An assignment for Principles of Technology, Grades 9-12, may also be taught with a vocational agriculture certificate or a trades and industry certificate with verifiable physics applications experience in business and industry, if assigned prior to the 1998-1999 school year. Six semester credit hours of college physics, chemistry, or electricity/electronics may be substituted for the business and industry experience. All teachers assigned to these courses shall participate in Texas Education Agency-approved training prior to teaching these courses effective with the 2019-2020 school year. Specific details about the required training can be found at tea.texas.gov/cte.