---
type: "Bill"
title: "Education Immunization Modifications"
description: "Education Immunization Modifications"
jurisdiction: "us/states/ut"
legislature: "Utah Legislature"
session: "2021"
identifier: "HB 233"
citation: "Utah HB 233 (2021)"
classification: ["bill"]
subjects: ["Colleges and Universities", "Education", "Health", "Health Care", "Higher Education", "Higher Education Students", "Immunizations", "Public Health", "Utah Board of Higher Education"]
status: "enacted"
primary_sponsors: ["Strong, Mark A."]
version_count: 3
action_count: 37
vote_count: 6
first_action: "2021-01-22"
last_action: "2021-03-17"
source: "openstates"
source_identifier: "ocd-bill/6c459566-f65d-4320-887e-92f17bd1f7b2"
source_url: "https://le.utah.gov/~2021/bills/static/HB0233.html"
source_hash: "d7f24319facb4afad1534bc38ef82a311681855fa8f0151cf876a734b1913451"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ut"]
---

# Utah HB 233 (2021) — Education Immunization Modifications

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Introduced** (filed) — [source](https://le.utah.gov/~2021/bills/hbillint/HB0233.pdf)
2. **Amended** (committee substitute) — [source](https://le.utah.gov/~2021/bills/hbillamd/HB0233.pdf)
3. **Enrolled** (enrolled) — [source](https://le.utah.gov/~2021/bills/hbillenr/HB0233.pdf)

## Votes

- House Comm - Amendment Recommendation # 2 — **11–0** (pass) · lower
- House Comm - Favorable Recommendation — **9–3** (pass) · lower
- passed 3rd reading — **48–22** (pass) · lower
- passed 2nd & 3rd readings/suspension — **21–7** (pass) · upper
- Senate Comm - Favorable Recommendation — **4–1** (pass) · lower
- House Comm - Held — **10–0** (pass) · lower

## Sponsors

- Strong, Mark A. — primary (person)
- Kennedy, Michael S. — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2021-01-22** Bill Numbered but not Distributed
- **2021-01-22** Numbered Bill Publicly Distributed
- **2021-01-22** bill sent to agencies for fiscal input
- **2021-01-25** received bill from Legislative Research
- **2021-01-25** 1st reading (Introduced) `introduction, reading-1`
- **2021-01-26** fiscal note publicly available
- **2021-01-26** received fiscal note from Fiscal Analyst
- **2021-02-04** to House Health and Human Services Committee `referral-committee`
- **2021-02-11** House Comm - Held
- **2021-02-17** House Comm - Amendment Recommendation # 2
- **2021-02-17** House Comm - Favorable Recommendation `committee-passage-favorable`
- **2021-02-18** comm rpt/amended
- **2021-02-18** 2nd reading `reading-2`
- **2021-02-19** 3rd reading `reading-3`
- **2021-02-19** passed 3rd reading `passage`
- **2021-02-19** to Senate
- **2021-02-22** received from House
- **2021-02-22** 1st reading (Introduced) `introduction, reading-1`
- **2021-02-22** to Senate Education Committee `referral-committee`
- **2021-02-26** Senate Comm - Favorable Recommendation `committee-passage-favorable`
- **2021-02-26** committee report favorable `committee-passage-favorable`
- **2021-02-26** placed on 2nd Reading Calendar
- **2021-03-03** 2nd Reading Calendar to Rules
- **2021-03-03** Rules to 2nd Reading Calendar
- **2021-03-04** 2nd & 3rd readings/suspension `reading-2, reading-3`
- **2021-03-04** passed 2nd & 3rd readings/suspension `passage`
- **2021-03-04** signed by President/returned to House
- **2021-03-04** to House
- **2021-03-04** received from Senate
- **2021-03-04** signed by Speaker/sent for enrolling
- **2021-03-09** Bill Received from House for Enrolling
- **2021-03-09** Draft of Enrolled Bill Prepared
- **2021-03-16** Enrolled Bill Returned to House or Senate
- **2021-03-16** enrolled bill to Printing
- **2021-03-16** received enrolled bill from Printing
- **2021-03-16** to Governor `executive-receipt`
- **2021-03-17** Governor Signed `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/6c459566-f65d-4320-887e-92f17bd1f7b2`. Confidence: reported (aggregated from official Utah legislature records).