Michael, Thank you for your questions. Is your school new, or in a position where TWC CSC requires you to submit instructor applications prior to the instructor teaching in your school? The TWC CSC rules state: If a school meets all three of the following requirements, it is not required to submit Instructor Applications to CSC for approval. 1. The school has been licensed for at least one year. 2. The school has been accredited by an agency recognized by the US Secretary of Education. 3. The school has had no more than one substantiated instructor complaint in the previous year. If your school does not have to submit applications, you just need to ensure that you have an application on file for the instructor to cover all courses they teach and serve as a back-up teacher. If your school is required to submit instructor applications, then you should submit for all courses that the instructor is qualified to teach. If the instructor is not qualified to teach in another course, then the instructor should not be designated as a back-up for that course. JP Mehlmann