If you need proof of vaccines for school, childcare, college, a health care job, travel, immigration, or your own files, Colorado’s official record system is the Colorado Immunization Information System, known as CIIS. This guide shows how to use the CIIS Public Portal, what to do when the record does not match, how myColorado works for COVID-19 records, and how to handle missing vaccines from pharmacies, retired doctors, out-of-state clinics, or older childhood records.
Colorado residents can request and print many official vaccine records through the CIIS Public Portal. The portal is used for yourself or a legal dependent and requires an identity verification step before the record is displayed. If the record is incomplete, Colorado says CIIS records include only immunizations that were reported to and entered into CIIS, so you may need to contact the vaccine provider, pharmacy, prior state registry, or CDPHE CIIS support.
For COVID-19 records, the myColorado app can display an official COVID-19 vaccination record from CIIS, including a Colorado SMART Health Card option for eligible users.
💉 Immunization Record Tools
Free interactive tools to find, verify, and plan your vaccine records — all data verified May 2026
🏛️ Instant State IIS Record Finder
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🔎 Where Should I Look for My Records?
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🔬 Titer Test Need Calculator
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⚡ Emergency Record Guide — How Long Do You Have?
Select your deadline and get a step-by-step, time-specific action plan to get your records as fast as possible.
What Is the Colorado Immunization Information System?
The Colorado Immunization Information System is Colorado’s official immunization registry. CDPHE describes CIIS as a lifelong immunization record tracking system under the Colorado Immunization Registry Act of 2007. Immunization records are confidential personal medical information, so public access is controlled through the official record request process.
CIIS is designed to help consolidate vaccine information from different immunization providers. A child may receive vaccines from a pediatrician, public health clinic, school clinic, hospital system, and pharmacy. An adult may receive flu, COVID-19, RSV, shingles, travel, or occupational vaccines from several different places. CIIS gives Colorado residents, legal guardians, schools, providers, and public health agencies a central place to locate recorded doses.
Colorado Immunization Information System, commonly called CIIS.
The CIIS Public Portal can be used to request, view, and print many official records.
CIIS may not be complete if a provider, pharmacy, federal provider, or out-of-state clinic did not report a dose.
How to Get Your Colorado Immunization Record Online
Start with the official CIIS Public Portal. This is the cleanest route for most Colorado residents because it is built for individuals and parents or guardians of minors to request a vaccination record.
- Open the official CIIS Public Portal. Go to the Colorado public portal at copublicportal.state.co.us. Choose whether the request is for yourself or a legal dependent.
- Enter the person’s information exactly as the provider recorded it. The CIIS portal warns that the information must match what is documented at the health care provider. Try legal name, middle initial, old last name, hyphenated name, or the spelling used by the clinic if the first search fails.
- Complete the identity verification step. The public portal process includes entering information, verifying your identity through a code, and then viewing immunizations if the match is successful.
- Review the vaccine dates before printing. Check the name, birth date, vaccine types, and dates. For school, college, work, or medical programs, the receiving organization usually needs exact vaccine dates and vaccine names.
- Print or save the official record. CDPHE states that individuals and parents or guardians can use the CIIS Public Portal to view and print an official record of immunizations.
- Use the release request form if the portal does not work. CDPHE also provides a Request to Release Immunization Record Form. Incomplete forms, forms without proper ID, or forms missing supporting documentation are not accepted. Records are securely transmitted by fax or secure email.
What a Colorado CIIS Immunization Record Includes
A Colorado immunization record should help the person requesting proof see the vaccine history that has been reported to CIIS. The most important items are the vaccine name or abbreviation, the date administered, and the person’s identifying information. Some provider-side records may contain additional clinical details, but the public record is mainly used to document vaccine history.
| Record detail | Why it matters | What to check |
|---|---|---|
| Name and birth date | Confirms the record belongs to the correct person. | Check spelling, old last names, hyphens, and date of birth. |
| Vaccine type | Schools and employers need vaccine categories such as MMR, varicella, hepatitis B, Tdap, DTaP, or IPV. | Make sure the vaccine group required by your school or employer appears. |
| Date administered | Most compliance offices need exact dates, not only “complete.” | Compare each date with the form or portal where you must upload proof. |
| Reported source | Helps identify which provider or pharmacy may need to correct a missing or wrong dose. | Contact the provider that gave the vaccine if a date looks wrong. |
| COVID-19 digital record | Colorado’s myColorado app can show COVID-19 vaccination record data from CIIS. | Remember that myColorado’s myVaccine Record is for COVID-19 records, not every routine vaccine. |
For official submission, use the format requested by the organization asking for proof. A CIIS printout may be enough for many uses, but a college health portal, employer occupational health department, civil surgeon, or school nurse may ask for a specific form or upload format.
Why Your Colorado Immunization Record May Be Missing or Incomplete
CIIS is very useful, but it is not magic. It depends on data reported by vaccine providers. If a dose was given out of state, by a federal provider, long before modern reporting, at a clinic that used different personal information, or at a pharmacy that reported with a typo, the public portal may not return a complete record.
The portal requires your details to match the provider’s record. Try different legal name formats.
The dose may exist at a clinic or pharmacy but not be entered into CIIS.
Some childhood or adult records may predate reliable electronic reporting.
Vaccines from Wyoming, Utah, New Mexico, Kansas, Nebraska, Arizona, or another state may be in that state’s registry.
Colorado notes that federal providers may not report certain COVID-19 vaccinations to CIIS.
Two records can exist if providers used different names, addresses, or birthdate details.
What to do if CIIS cannot find your record
- Search again with exact details. Use the name and birth date exactly as your Colorado provider likely entered them.
- Check your provider patient portal. Large Colorado systems may show immunizations in MyChart or a similar patient portal even when the public CIIS search fails.
- Check pharmacy records. Ask CVS, Walgreens, King Soopers, Safeway, Costco, Walmart, or the pharmacy that administered the dose for a printed vaccine history.
- Ask the provider to correct or submit the record. If a vaccine was given in Colorado but missing from CIIS, the provider that administered it is usually the best starting point.
- Use the CDPHE record information request route. If the issue is an incorrect or inaccessible record, use the official CDPHE CIIS record support resources.
- Search another state registry if you moved to Colorado. Use the CDC IIS contact directory to locate the state where the vaccine was actually administered.
Colorado School Immunization Requirements and CIIS Records
Colorado K-12 schools require documentation before the student’s first day of school. CDPHE says parents or guardians must provide one of three types of documentation: an immunization record showing the student is up to date, an in-process plan signed by a health care provider, or a Certificate of Medical or Nonmedical Exemption for missing school-required vaccines.
| Colorado K-12 vaccine | Common requirement shown by CDPHE | Important note |
|---|---|---|
| Hepatitis B | 3 doses | Required for school attendance unless a valid exemption or plan applies. |
| DTaP | 5 doses | Final dose timing matters for kindergarten entry. |
| Polio IPV | 4 doses | Colorado school records need dates and vaccine type. |
| MMR | 2 doses | Measles, mumps, and rubella proof may be checked closely during outbreaks. |
| Varicella | 2 doses | Chickenpox vaccine or valid documentation is commonly reviewed. |
| Tdap | 1 dose | For 2025-2026, required before sixth grade entry. Starting 2026-2027, Colorado requires Tdap before the first day of seventh grade. |
A CIIS record can help prove doses, but the school decides whether the record, in-process plan, or exemption certificate satisfies its file requirement. CDPHE states that a student who does not have required immunization documents on file must be denied attendance in accordance with law, so families should not wait until the first school morning to resolve missing doses.
Colorado COVID-19 Records, myColorado and SMART Health Cards
Colorado has a separate digital workflow for COVID-19 vaccine proof through the myColorado app. The myVaccine Record feature provides secure access to an official COVID-19 vaccination record within CIIS. The app can display a Colorado SMART Health Card with a QR code and a digital version of the CDC COVID-19 vaccination record card.
COVID-19 vaccine proof, including a QR-code SMART Health Card option.
myColorado says users can only access COVID-19 vaccination information in this feature.
After vaccination, myColorado says to allow 24-72 hours for the dose to appear after provider reporting.
How the myColorado COVID-19 vaccine record works
- Download myColorado. The app requires a Colorado driver license or state-issued ID for account setup.
- Open the COVID-19 Vaccination Record feature. It is available from the Wallet area in the app.
- Confirm your identity details. The app matches your name, birth date, phone number or email to what your COVID-19 vaccine provider reported to CIIS.
- Save the record offline if needed. Colorado recommends downloading a copy so you can access proof even if connectivity is poor.
Where You May Need Colorado Immunization Records
| Use case | What they usually want | Colorado-specific tip |
|---|---|---|
| K-12 school | Record, in-process plan, or exemption certificate. | Use CIIS early and confirm the school’s required format before the first day. |
| Childcare | Age-appropriate immunization proof. | Ask the child care program whether it wants a CIIS printout or provider form. |
| College | Often MMR, meningococcal, TB screening, varicella, hepatitis B, or program-specific proof. | Upload CIIS records to the college health portal, then fix any rejected doses directly. |
| Health care job | MMR, varicella, hepatitis B, Tdap, flu, COVID-19, TB screening, or titers. | Ask occupational health if titers are accepted before paying for lab tests. |
| Nursing or medical program | Exact dates, positive titers, and sometimes provider-signed forms. | CIIS is a starting point; your program may require a separate compliance upload. |
| Travel clinic | Routine vaccine history plus travel-specific doses. | Bring CIIS plus pharmacy or foreign records so the travel clinician can avoid duplicate doses. |
| Immigration medical exam | Vaccine dates reviewed by a civil surgeon. | Bring CIIS, paper records, pharmacy records, and any foreign vaccine documentation. |
| Military or federal job | Official vaccine history or occupational health forms. | Federal provider records may not always flow into CIIS, so keep separate copies. |
| Employer verification | Vaccine proof, exemption process, or titer results depending on policy. | Ask for the employer’s written policy and accepted document types. |
| Personal archive | A clean PDF or printed record. | Save CIIS, myColorado COVID-19, pharmacy, school, and provider copies in one secure folder. |
Hard Colorado Immunization Record Problems and What to Do
Your Colorado doctor retired or the clinic closed
Search CIIS first. If the vaccine was reported before the office closed, it may still appear in the registry. If CIIS is incomplete, look for a successor clinic, hospital system, or medical records custodian. For example, a small clinic may have joined or transferred records to a larger health system. If you cannot locate the custodian, use Colorado provider licensing resources and your local public health agency to identify possible record locations.
You moved to Colorado from another state
CIIS may not contain vaccines given before you moved. Check the registry in the state where the vaccine was administered. Common nearby routes include Wyoming, Nebraska, Kansas, Oklahoma, New Mexico, Arizona, and Utah immunization systems. The CDC IIS contact directory is the safest starting point for another state’s official vaccine record office.
You were vaccinated outside the United States
Bring the original foreign vaccine record to a Colorado clinician, school nurse, college health office, civil surgeon, or local public health agency. They may need vaccine names, exact dates, dose spacing, and translation. Foreign records are not automatically added to CIIS just because you now live in Colorado.
You need a same-day record for school or work
Try the CIIS Public Portal first. If it fails, contact the provider or pharmacy that administered the vaccine and ask for a same-day immunization printout. For a school deadline, ask whether the school will temporarily accept an in-process plan signed by a provider while missing records are being corrected.
Your COVID-19 dose is missing in myColorado
Colorado says providers should report vaccination to CIIS, but timing can vary. myColorado advises allowing 24-72 hours after vaccination for a COVID-19 dose to appear. If the dose still does not appear, contact the provider that administered the vaccine and ask whether they submitted the correct information to CIIS.
Titer Tests as Proof When Colorado Vaccine Records Are Missing
A titer test is a blood test that checks whether you have antibodies showing immunity to a disease. Titers are most commonly used for MMR, varicella, and hepatitis B when adults cannot locate childhood records or when a health care program requires proof of immunity.
| Situation | Common titer use | Before you pay |
|---|---|---|
| Colorado health care employment | MMR, varicella, hepatitis B | Ask occupational health which lab format and reference range they accept. |
| Nursing or medical school | MMR, varicella, hepatitis B | Ask whether positive IgG titers satisfy the compliance portal requirement. |
| Immigration medical exam | Depends on vaccine and civil surgeon review | Ask the civil surgeon before ordering independent lab work. |
| K-12 school | Less common and requirement-specific | Use CDPHE school guidance and ask the school before relying on a titer. |
Lab options often include a doctor’s office, hospital lab, Labcorp, Quest Diagnostics, or a local occupational health clinic. Self-pay costs vary by vaccine and lab. If your result is negative or equivocal, the next step may be revaccination, a booster, or repeat testing based on medical advice and the receiving organization’s rules.
Official Colorado Immunization Record Resources
Use official Colorado and federal sources first. This page is an independent guide and is not part of CDPHE, CIIS, myColorado, CDC, any school district, employer, university, or health care provider.
Official Colorado page explaining public portal access and release form options.
Open CDPHE record pageOfficial portal for requesting a vaccination record for yourself or a legal dependent.
Open CIIS Public PortalMain official CIIS information page from Colorado Department of Public Health and Environment.
Open CIIS informationOfficial school vaccine requirements, documentation options, and 2026-2027 Tdap update.
Open school requirementsLists Colorado CIIS contact information and other state registry contacts.
Open CDC IIS contactsOfficial Colorado digital COVID-19 vaccination record and SMART Health Card information.
Open myColorado record pageGeneral information about SMART Health Card issuers and QR-code vaccine verification.
Open SMART Health CardsGeneral federal vaccine information and schedules.
Open CDC vaccinesSource Verification for This Colorado Guide
This guide was checked against Colorado Department of Public Health and Environment CIIS pages, the official CIIS Public Portal, CDPHE school immunization requirements, CDPHE school professional updates, myColorado myVaccine Record guidance, and the CDC IIS contact directory. Vaccine rules, portal behavior, school requirements, and agency contacts can change, so verify final requirements with CDPHE, CIIS, your school, provider, employer, college, civil surgeon, or local public health agency before submitting records.
Colorado Immunization Records FAQs
Use the official CIIS Public Portal at copublicportal.state.co.us. Choose whether the request is for yourself or a dependent, enter the required information exactly as your provider recorded it, complete identity verification, then view and print the record if a match is found.
CIIS stands for Colorado Immunization Information System. It is Colorado’s official lifelong immunization record tracking system managed by the Colorado Department of Public Health and Environment.
Yes. CDPHE says individuals and parents or guardians of minors can use the CIIS Public Portal to view and print an official record of immunizations.
The portal may fail if your name, birth date, or contact details do not exactly match provider records. It may also fail if the vaccine was never reported to CIIS, was given in another state, was recorded under a different name, or exists in a duplicate profile.
No. CDPHE says CIIS records may not be complete because they include immunizations that were reported to and entered into CIIS. Older records, out-of-state vaccines, federal provider records, and some pharmacy doses may be missing.
Yes, Colorado offers a Colorado SMART Health Card through the myColorado myVaccine Record feature for COVID-19 vaccination proof. It does not replace the full CIIS Public Portal for routine vaccine records.
No. myColorado says the COVID-19 Vaccination Record feature only gives access to COVID-19 vaccination information. For full routine immunization history, use the CIIS Public Portal or provider records.
myColorado says providers should report vaccination to CIIS and that timing may vary, so users should allow 24-72 hours for a COVID-19 vaccination to appear.
CDPHE lists required K-12 vaccines including hepatitis B, DTaP, IPV, MMR, varicella, and Tdap. Dose counts and timing depend on age, grade, and catch-up status.
Starting in the 2026-2027 school year, Colorado law requires students to receive one dose of Tdap before their first day of seventh grade. This is a change from the previous sixth-grade timing.
CDPHE states that a student who does not have required immunization documents on file must be denied attendance in accordance with law. Families should resolve missing records before the first school day.
Search CIIS first. If the record is incomplete, look for a successor clinic, hospital system, or medical records custodian. You can also ask your current provider or local public health agency for help locating old records.
Not automatically in every case. Vaccines given in another state may remain in that state’s immunization registry. Use the CDC IIS contact directory to request records from the state where the vaccines were administered.
Pharmacy vaccines may appear if the pharmacy reported them correctly to CIIS. If a dose is missing, check the pharmacy app or ask the pharmacy for a printed immunization record and whether it was submitted to CIIS.
Sometimes. Titers may be accepted by employers, colleges, health care programs, or civil surgeons for vaccines such as MMR, varicella, or hepatitis B. Always ask the organization requesting proof before paying for a titer.
The CDC IIS contact directory lists Colorado CIIS phone support as 303-692-2420 and email as cdphe.ciis@state.co.us. CDPHE’s CIIS pages also provide record request and support options.
No. ImmunizationRecord.org is an independent informational guide. Always use CDPHE, CIIS, CDC, your school, your provider, your employer, or your college as the final authority for official record requirements.