"Chief school administrator" shall include a school district superintendent, an executive director of an intermediate unit, an administrative director of an area career and technical school or a chief executive officer of a charter school, regional charter school or cyber charter school.
"Day-to-day substitute permit" shall mean a permit issued by the department or a chief school administrator to fill a position due to the temporary absence of a professional or temporary professional employe and for which a long-term substitute permit is not required.
"Emergency permit" shall mean a permit issued to fill a vacancy resulting from resignation, termination, retirement, death or the creation of a new position.
"Long-term substitute permit" shall mean a permit issued by the department that allows an individual to substitute for an individual professional or temporary professional employe for more than twenty (20) days.
24 P.S. § 11-1114