In preliminary provisions, further providing for definitions, for Keystone Exams and graduation requirements and for special provisions applicable to the Keystone Exams, graduation requirements and alternative competency assessment; in district superintendents and assistant district superintendents, further providing for performance review; in professional employees, further providing for definitions; in pupils and attendance, further providing for assisting students experiencing education instability; in E-chievement Program, further providing for definitions; and, in educational tax credits, further providing for definitions.