(a) except in the case of a program approved pursuant to section 110.5 of this Part, comprise the summer session of a public elementary school and use the building(s) and equipment of such school or other suitable facility as approved by the Commissioner of Education;

(b) provide a program during the months of July and August of at least 20 hours of instruction;

(c) employ teachers who are certified to teach in the elementary schools of this State, and use paraprofessionals as needed; and

(d) provide daily instructional sessions of at least one hour but not more than five hours.