---
type: "Bill"
title: "Public Official Oaths And Affirmations"
description: "Statutory Revision Committee. Current law requires most public officials and many public employees to swear or affirm an oath of office."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2018A"
identifier: "HB 18-1138"
citation: "Colorado HB 18-1138 (2018A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Jeni James Arndt", "Rachel Zenzinger"]
version_count: 10
action_count: 14
vote_count: 4
first_action: "2018-01-24T07:00:00+00:00"
last_action: "2018-04-02T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/adec2131-acd0-4634-b006-aa7c99c3d73c"
source_url: "http://leg.colorado.gov/bills/hb18-1138"
source_hash: "185469737075ff37cd2a225aa9c67bc1c028bdedb23ede1abb1ac5e8968cbc9d"
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 18-1138 (2018A) — Public Official Oaths And Affirmations

Statutory Revision Committee. Current law requires most public officials and many public employees to swear or affirm an oath of office.

## 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/documents/2018a/bills/cr/2018a_hb1138_s_sa_001.pdf)
2. **Engrossed (02/20/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_eng.pdf)
3. **Final Act (03/22/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_enr.pdf)
4. **Introduced (01/24/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_01.pdf)
5. **PA1 (02/15/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138sa_01.pdf)
6. **PA2 (03/08/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138ssta_01.pdf)
7. **Reengrossed (02/21/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_ren.pdf)
8. **Rerevised (03/14/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_rer.pdf)
9. **Revised (03/13/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_rev.pdf)
10. **Signed Act (04/02/2018)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2018A/bills/2018a_1138_signed.pdf)

## Votes

- REPASS — **41–23** (pass) · lower
- BILL — **20–14** (pass) · lower
- CONCUR — **51–13** (pass) · lower
- BILL — **48–14** (pass) · lower

## Sponsors

- Jeni James Arndt — primary (person)
- Rachel Zenzinger — primary (person)

## Timeline

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

- **2018-04-02T06:00:00+00:00** Governor Signed `executive-signature`
- **2018-03-22T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2018-03-22T06:00:00+00:00** Signed by the President of the Senate
- **2018-03-22T06:00:00+00:00** Signed by the Speaker of the House
- **2018-03-15T06:00:00+00:00** House Considered Senate Amendments - Result was to Concur - Repass
- **2018-03-14T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2018-03-13T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee `reading-2`
- **2018-03-12T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
- **2018-03-07T07:00:00+00:00** Senate Committee on State, Veterans, & Military Affairs Refer Amended to Senate Committee of the Whole `referral-committee, committee-passage`
- **2018-02-21T07:00:00+00:00** Introduced In Senate - Assigned to State, Veterans, & Military Affairs `introduction`
- **2018-02-21T07:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2018-02-20T07:00:00+00:00** House Second Reading Passed with Amendments - Committee, Floor `reading-2`
- **2018-02-14T07:00:00+00:00** House Committee on State, Veterans, & Military Affairs Refer Amended to House Committee of the Whole `referral-committee, committee-passage`
- **2018-01-24T07:00:00+00:00** Introduced In House - Assigned to State, Veterans, & Military Affairs `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/adec2131-acd0-4634-b006-aa7c99c3d73c`. Confidence: reported (aggregated from official Colorado legislature records).