Immunization requirements for school entry

Colorado law requires students attending Colorado K-12 schools, licensed child cares, camps, and colleges/universities to be vaccinated against certain diseases unless an exemption is on file at the school.

The number and timing of vaccine doses for Colorado school entry follow the vaccine schedules outlined in Colorado Board of Health rule 6 CCR 1009-2.

Sections:

Information for families, students, health care providers, and school professionals
Information for school and child care professionals

Information for families, students, health care providers, and school professionals:

Immunization requirements to attend child care and preschool

Information for families | Understanding the requirements to attend child care or preschool

Immunization requirements to attend school (K-12)

Information for families | Understanding the requirements to attend school (K-12)

Immunization requirements to attend camp

Information for families | Understanding the requirements to attend camp | Information for camp staff

Immunization requirements for entry into college and university

Information for families and college/university students | Required documentation | Information for college/university staff | Required college/university reporting

health care pro looking through files in a cabinet

This exemption process and forms are for Colorado school-required vaccines only.

Finding a student’s immunization record for school

Tips on where to find your child or student’s immunization records

Exemptions to school-required vaccines

General information | Medical exemptions | Nonmedical exemptions

College/university, school, and child care immunization and exemption data

Individual school and child care immunization and exemption rates | District, county, and state-level immunization and exemption rate

Colorado Immunization Information System

CIIS user training materials | Find immunization records | Information about CIIS | CIIS and electronic health records | CIIS data requests

Information for school and child care professionals

News and announcements

Changes have been made to Colorado school immunization rules. Refer to the immunization laws and Board of Health rules webpage for more information.
School and child care immunization data reporting closes Jan. 15, 2026.
The 2026-2027 school year Annual Parent Letter will be published on the school and child care webpages by Jan. 15, 2026.
- Schools and child care centers are required, on an annual basis, to directly distribute this letter to the parent(s) or legal guardian(s) of every enrolled student by April 15, 2026.
- The deadline for schools and child cares to send the Annual Parent Letter has been extended from Feb. 15 to April 15. This change will take effect in the current 2025-2026 school year and applies to the distribution of the 2026-2027 Annual Parent Letter.