The HSE is an alternative for earning a high school diploma. Your HSE diploma can be earned after completing the new high school equivalency exam called the TASC. TASC stands for Test Assessing Secondary Completion. The TASC is a set of tests that certify American high-school level academic skills. It is available for students who did not graduate from high school and is available in both English and Spanish. The TASC test replaces the what used to be called the GED exam.