(3) ...Children who are not fully immunized can only continue to attend school if they are in the process of completing the immunization series based on the Advisory Committee on Immunization Practices Recommended Immunization Schedules for Persons Aged 0 through 18 Years incorporated by reference at subdivision (f) of this section. If a child does not receive subsequent doses of vaccine in an immunization series according to the age appropriate ACIP catch-up schedule, including at appropriate intervals, the child is no longer in process and must be excluded from school within 14 days, if not otherwise exempt in accordance with section 66-1.3 of this Subpart.

A principal or person in charge of a school shall not admit a child to school unless a person in parental relation to the child has furnished the school with one of the following: (a) A certificate of immunization, as described in section 66-1.6 of this Subpart, from a health care practitioner or from NYSIIS or the CIR, documenting that the child has been fully immunized according to the requirements of section 66-1.1 (f) of this Subpart. (b) Documentation that the child is in process of receiving immunizations as defined in section 66-1.1(j) of this Subpart. A principal or person in charge of a school shall not refuse to admit a child to school, based on immunization requirements, if that child is in process. (c) A signed, completed medical exemption form approved by the NYSDOH or NYC Department of Education from a physician licensed to practice medicine in New York State certifying that immunization may be detrimental to the child's health, containing sufficient information to identify a medical contraindication to a specific immunization and specifying the length of time the immunization is medically contraindicated. The medical exemption must be reissued annually. The principal or person in charge of the school may require additional information supporting the exemption.

(c) Diagnostic screening for new entrants shall include, but not be limited to:

• (1) a health examination by a health care provider, or evidence of such in the form of a health certificate, in accordance with sections 903, 904 and 905 of the Education Law;
• (2) certificates of immunization or referral for immunization in accordance with section 2164 of the Public Health Law;
• (3) vision, hearing and scoliosis screenings as required by section 136.3 of this Title;
• (4) a determination of development in oral expression, listening comprehension, written expression, basic reading skills and reading fluency and comprehension, mathematical calculation and problem solving, motor development, articulation skills, and cognitive development using recognized and validated screening tools: and
• (5) a determination whether the student is of foreign birth or ancestry and comes from a home where a language other than English is spoken as determined by the results of a home language questionnaire and an informal interview in English and the native language.

(2) Immunizations. It shall be the duty of the trustees and boards of education to require that every student entering or attending school provide proof of immunization against certain diseases in accordance with the provisions of Public Health Law section 2164(7)(a).

Site provides guidance on immunization requirements and authorization of RNs to administer specified immunization agents for a specified period of time to an entire group of persons such as school children.