Complex sentence: NTTC Corry Station was among the first Navy technical schools to be accredited by the Southern Association of Colleges and Schools and this accreditation certified that the instruction offered at NTTC and students could receive college-level credit for completed courses.
Split into simpler sentences: NTTC Corry Station was among the first Navy technical schools to be accredited by the Southern Association of Colleges and Schools. This accreditation certified that the instruction offered at NTTC and students could receive college-level credit for completed courses.