---
type: "Bill"
title: "Extend Deadline For Training To Teach Reading"
description: "The law existing before the passage of the act required school districts, charter schools, and boards of cooperative services to demonstrate that, by the beginning of the 2021-22 school year, the kindergarten-through-third-grade teachers they employ have completed evidence-based training in teaching reading. The act extends the deadline for completing the training until the beginning of the 2022-23 school year.(Note: This summary applies to this bill as enacted.)"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2021A"
identifier: "HB 21-1129"
citation: "Colorado HB 21-1129 (2021A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Barbara McLachlan", "Jeff Bridges", "Mary Bradfield", "Tammy Story"]
version_count: 8
action_count: 14
vote_count: 2
first_action: "2021-02-22T07:00:00+00:00"
last_action: "2021-05-10T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/7768e606-7d5e-495b-97c1-b9634fdcc940"
source_url: "http://leg.colorado.gov/bills/hb21-1129"
source_hash: "754a449d23edb820041501801ee07f087a9c89d848b4b9f88c532927076e7db5"
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-co"]
---

# Colorado HB 21-1129 (2021A) — Extend Deadline For Training To Teach Reading

The law existing before the passage of the act required school districts, charter schools, and boards of cooperative services to demonstrate that, by the beginning of the 2021-22 school year, the kindergarten-through-third-grade teachers they employ have completed evidence-based training in teaching reading. The act extends the deadline for completing the training until the beginning of the 2022-23 school year.(Note: This summary applies to this bill as enacted.)

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_hb1129_s_ed_001.pdf)
2. **Engrossed (03/22/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_eng.pdf)
3. **Final Act (04/30/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_enr.pdf)
4. **Introduced (02/22/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_01.pdf)
5. **Reengrossed (03/24/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_ren.pdf)
6. **Rerevised (04/21/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_rer.pdf)
7. **Revised (04/20/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_1129_rev.pdf)
8. **Signed Act (05/10/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_1129_signed.pdf)

## Votes

- BILL — **19–15** (pass) · upper
- BILL — **45–16** (pass) · lower

## Sponsors

- Barbara McLachlan — primary (person)
- Jeff Bridges — primary (person)
- Mary Bradfield — primary (person)
- Tammy Story — primary (person)

## Timeline

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

- **2021-05-10T06:00:00+00:00** Governor Signed `executive-signature`
- **2021-04-30T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2021-04-30T06:00:00+00:00** Signed by the President of the Senate
- **2021-04-30T06:00:00+00:00** Signed by the Speaker of the House
- **2021-04-21T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2021-04-20T06:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
- **2021-04-15T06:00:00+00:00** Senate Committee on Education Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2021-03-24T06:00:00+00:00** Introduced In Senate - Assigned to Education `introduction`
- **2021-03-24T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2021-03-23T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
- **2021-03-22T06:00:00+00:00** House Second Reading Passed - No Amendments `reading-2`
- **2021-03-19T06:00:00+00:00** House Second Reading Laid Over Daily - No Amendments
- **2021-03-17T06:00:00+00:00** House Committee on Education Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2021-02-22T07:00:00+00:00** Introduced In House - Assigned to Education `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/7768e606-7d5e-495b-97c1-b9634fdcc940`. Confidence: reported (aggregated from official Colorado legislature records).