Study on your own terms, regardless of where you are. License Prep is a fully functional, up to date, study aid for all of the US Coast Guard (USCG) Engineering exams. Whether you are studying for your first couple QMED endorsements, or gearing up for your 1st/CHENG ticket, this app is a great tool to facilitate your success. Unlike other apps that make you buy all of the sections up front, including ones you dont need, License Prep is tailored to fit your needs and you can purchase individual sections as you go. And once you purchase a section, its yours, we do not operate on a subscription sales model like other programs. Tests are divided by name and color; QMED-Green, Assistant-Blue, and Chief-Red. The questions within each module are up to date based on the latest NMC release. I am always digging around for new Illustrations which the USCG has yet to release. Looking at you refrigeration and electrical!