Credit toward state graduation requirements may be granted under this section only under the following conditions.(1) The institution offering correspondence courses must be The University of Texas at Austin, Texas Tech University, or another public institution of higher education approved by the commissioner of education.(2) Students may earn course credit through distance learning technologies such as, but not limited to, satellite, Internet, two-way video-conferencing, online courses, the Texas Virtual School Network (TxVSN), and instructional television.(3) The correspondence and distance learning courses must include the essential knowledge and skills as specified in §74.1 of this title (relating to Essential Knowledge and Skills) for such a course.