---
type: "Bill"
title: "Militia; Oklahoma Military Department; amending revolving fund name; expanding purposes of use; base infrastructure needs and development; effective dates; emergency."
description: "Militia; Oklahoma Military Department; amending revolving fund name; expanding purposes of use; base infrastructure needs and development; effective dates; emergency."
jurisdiction: "us/states/ok"
legislature: "Oklahoma Legislature"
session: "2026"
identifier: "HB 4045"
citation: "Oklahoma HB 4045 (2026)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Caldwell (Trey)", "Hall"]
version_count: 6
action_count: 22
vote_count: 4
first_action: "2026-02-02"
last_action: "2026-04-22"
source: "openstates"
source_identifier: "ocd-bill/f9edb500-32f0-4a95-8a75-0b30e0a4a17d"
source_url: "http://www.oklegislature.gov/BillInfo.aspx?Bill=HB4045&session=2600"
source_hash: "192a131a0f0da59a5bd93c82026f99845462b0c312072866622e8a82e72bbc1e"
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-ok"]
---

# Oklahoma HB 4045 (2026) — Militia; Oklahoma Military Department; amending revolving fund name; expanding purposes of use; base infrastructure needs and development; effective dates; emergency.

## Version chain

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

1. **Introduced** (filed) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 INT/hB/HB4045 INT.PDF)
2. **Engrossed** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENGR/hB/HB4045 ENGR.PDF)
3. **Enrolled (final version)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 ENR/hB/HB4045 ENR.PDF)
4. **Floor (House)** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 FLR/HFLR/HB4045 HFLR.PDF)
5. **House Committee Substitute** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE SUBS/HCS/HB4045 CS.PDF)
6. **Proposed Committee Substitute (full committee) 1** (committee substitute) — [source](https://www.oklegislature.gov/cf_pdf/2025-26 COMMITTEE AMENDMENTS/House/HB4045 FULLPCS1 TREY CALDWELL-MKS.PDF)

## Votes

- Joint Committee On Appropriations And Budget Committee: Do Pass As Amended By Cs — **23–1** (pass) · lower
- Third Reading — **37–7** (pass) · upper
- Joint Committee On Appropriations And Budget — **16–5** (pass) · upper
- Third Reading — **89–3** (pass) · lower

## Sponsors

- Caldwell (Trey) — primary (person)
- Hall — primary (person)

## Timeline

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

- **2026-02-02** First Reading `introduction, reading-1`
- **2026-02-02** Authored by Representative Caldwell (Trey), Kane
- **2026-02-02** Authored by Senator Hall (principal Senate author)
- **2026-02-02** Coauthored by Senator(s) Haste
- **2026-02-03** Second Reading referred to Joint Committee on Appropriations and Budget `reading-2, referral-committee`
- **2026-04-13** JCR; Do pass, amended by committee substitute Joint Committee on Appropriations and Budget `committee-passage`
- **2026-04-13** Emergency added
- **2026-04-14** General Order
- **2026-04-14** JCR adopted
- **2026-04-14** Third Reading, Measure and Emergency passed: Ayes: 89 Nays: 3 `passage, reading-3`
- **2026-04-14** Referred for engrossment
- **2026-04-14** Engrossed, signed, to Senate `passage`
- **2026-04-14** First Reading `introduction, reading-1`
- **2026-04-15** Direct to Calendar
- **2026-04-16** JCR adopted
- **2026-04-16** Measure and Emergency passed: Ayes: 37 Nays: 7 `passage`
- **2026-04-16** Engrossed measure signed, returned to House `passage`
- **2026-04-16** Referred for enrollment
- **2026-04-16** Enrolled, signed, to Senate
- **2026-04-16** Enrolled measure signed, returned to House
- **2026-04-16** Sent to Governor `executive-receipt`
- **2026-04-22** Approved by Governor 04/22/2026 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/f9edb500-32f0-4a95-8a75-0b30e0a4a17d`. Confidence: reported (aggregated from official Oklahoma legislature records).