Complex sentence: In 1974, however, SIPI was awarded a citation for Excellence of Service, and by 1975, SIPI received accreditation status at the Certificate Level by the North Central Association of Colleges and Schools.
Split into simpler sentences: In 1974, SIPI was awarded a citation for Excellence of Service. By 1975, SIPI was accredited at the Certificate Level by the North Central Association of Colleges and Schools.