A local school system shall: A local school system shall: Develop and maintain a policy for determining the eligibility and selection of prekindergarten sites as well as the eligibility of 4-year-old students for prekindergarten programs consistent with the requirements of this chapter; Develop criteria in reference to Regulation .03B and C of this chapter that establishes procedures to include children in the prekindergarten program who are not eligible under Regulation .03A of this chapter; Operate the prekindergarten educational program 5 days per week for a minimum of 2.5 hours per day consistent with the school calendar approved by the local board; Analyze the Department-approved kindergarten assessment system information described in COMAR 13A.08.01.02-3 to evaluate the effectiveness of the prekindergarten program, and make necessary adjustments to the prekindergarten instructional program; Provide data in the Bridge to Excellence Master Plan needs assessment to indicate progress on prekindergarten program goals; Provide staffing for each session of prekindergarten to include a teacher who possesses a current State professional certificate in early childhood education and a para-professional with a minimum of a high school diploma, or its equivalent, or a CDA; Align each prekindergarten program with the Maryland Common Core State Curriculum; Based on the September 30 enrollment count, maintain an average staff to student ratio of 1:10 with an average of 20 students per classroom; and Provide responses to Department requests for information and data related to the operation of the prekindergarten program. A qualified vendor shall: Maintain State or national early childhood program accreditation; Have the capacity to meet the responsibilities identified in this regulation; Be licensed to operate a child care center pursuant to COMAR 13A.16; and Provide responses to Department requests for information and data related to the operation of the prekindergarten program.