The Keystone Exams Program is Pennsylvania's new statewide assessment program to replace the PSSA exams. The Keystone Exams will test students in several subjects, including Algebra I, Literature, Biology, and English Composition. Students will be required to demonstrate proficiency on the Keystone Exams as part of their graduation requirements, either through the exams counting as a percentage of their course grade, an independently validated local assessment, or passing scores on the standalone exams. The timeline for rolling out the Keystone Exams begins in 2014-2015 with the classes of 2015 and 2016.