---
type: "Bill"
title: "Revise aviation fuel taxation"
description: "Revise aviation fuel taxation"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2019"
identifier: "HB 661"
citation: "Montana HB 661 (2019)"
classification: ["bill"]
subjects: ["Appropriations (see also: State Finance)", "Revenue", "State", "Taxation (Generally)", "Taxation--Fuels", "Transportation (see also: Motor Vehicles; Taxation--Transportation)"]
status: "enacted"
primary_sponsors: ["Geraldine Custer"]
version_count: 6
action_count: 83
vote_count: 13
first_action: "2018-11-23"
last_action: "2019-05-20"
source: "openstates"
source_identifier: "ocd-bill/48900868-f583-4865-a10b-0e3694507f8b"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=661&P_BLTP_BILL_TYP_CD=HB&Z_ACTION=Find&P_SESS=20191"
source_hash: "fe67edf2aa9ba6d23095e6c9ccce5a982b54231822c62d0faf79f6b6a27d35a1"
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-mt"]
---

# Montana HB 661 (2019) — Revise aviation fuel taxation

## Version chain

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

1. **HB0661_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0699//HB0661_1.pdf)
2. **HB0661_2.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0699//HB0661_2.pdf)
3. **HB0661_3.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0699//HB0661_3.pdf)
4. **HB0661_4.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0699//HB0661_4.pdf)
5. **HB0661_x.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2019/HB0699//HB0661_x.pdf)
6. **Enrolled** (enrolled) — [source](http://leg.mt.gov/bills/2019/billpdf/HB0661.pdf)

## Votes

- Do Concur — **33–17** (pass) · upper
- AMD-001 Brown D/PASS — **17–33** (fail) · upper
- AMD-001 Fern D/PASS — **38–62** (fail) · lower
- Do Pass — **70–28** (pass) · lower
- Do Pass — **71–29** (pass) · lower
- BE CONCURRED IN AS AMENDED — **6–4** (pass) · upper
- DO PASS — **16–6** (pass) · lower
- Do Concur — **67–32** (pass) · lower
- BE CONCURRED IN AS AMENDED — **12–7** (pass) · upper
- Do Concur — **30–20** (pass) · upper
- BE TABLED — **14–0** (pass) · lower
- Do Concur — **74–26** (pass) · lower
- ReconsAction-Fern — **60–37** (pass) · lower

## Sponsors

- Geraldine Custer — primary (person)

## Timeline

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

- **2018-11-23** Draft Request Received
- **2019-02-01** Draft On Hold
- **2019-02-04** Draft to Requester for Review
- **2019-02-04** Fiscal Note Probable
- **2019-02-07** Draft On Hold
- **2019-02-08** Draft in Legal Review
- **2019-02-08** Draft in Edit
- **2019-02-11** Draft to Drafter - Edit Review [KWK]
- **2019-02-11** Draft in Input/Proofing
- **2019-02-12** Draft in Final Drafter Review
- **2019-02-12** Bill Draft Text Available Electronically
- **2019-02-12** Executive Director Review
- **2019-02-12** Draft in Assembly
- **2019-02-12** Executive Director Final Review
- **2019-02-12** Draft Ready for Delivery
- **2019-02-13** Draft Back for Redo
- **2019-02-13** Draft in Legal Review
- **2019-02-14** Draft to Drafter - Edit Review [KWK]
- **2019-02-14** Draft in Final Drafter Review
- **2019-02-14** Bill Draft Text Available Electronically
- **2019-02-15** Executive Director Final Review
- **2019-02-19** Draft Ready for Delivery
- **2019-03-12** Draft Delivered to Requester
- **2019-03-13** Fiscal Note Requested
- **2019-03-13** Introduced `introduction`
- **2019-03-13** Introduced Bill Text Available Electronically
- **2019-03-14** Referred to Committee `referral-committee`
- **2019-03-14** First Reading `reading-1`
- **2019-03-20** Fiscal Note Received
- **2019-03-20** Fiscal Note Signed
- **2019-03-20** Hearing
- **2019-03-21** Fiscal Note Printed
- **2019-03-25** Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2019-03-26** Committee Report--Bill Passed as Amended `committee-passage`
- **2019-03-26** Reconsidered Previous Action; Remains in 2nd Reading Process
- **2019-03-26** Printed - New Version Available
- **2019-03-26** Revised Fiscal Note Requested
- **2019-03-28** Revised Fiscal Note Received
- **2019-03-28** Revised Fiscal Note Signed
- **2019-03-28** Revised Fiscal Note Printed
- **2019-03-28** Scheduled for 2nd Reading
- **2019-03-28** 2nd Reading Motion to Amend Failed `amendment-failure`
- **2019-03-28** 2nd Reading Passed `reading-2`
- **2019-03-28** Rereferred to Committee `referral-committee`
- **2019-03-28** Hearing
- **2019-03-28** Committee Executive Action--Bill Passed `committee-passage`
- **2019-03-29** Committee Report--Bill Passed `committee-passage`
- **2019-03-30** Scheduled for 3rd Reading
- **2019-03-30** 3rd Reading Passed `passage, reading-3`
- **2019-03-30** Transmitted to Senate
- **2019-04-01** First Reading `reading-1`
- **2019-04-04** Referred to Committee `referral-committee`
- **2019-04-09** Hearing
- **2019-04-11** Committee Executive Action--Bill Concurred as Amended
- **2019-04-12** Printed - New Version Available
- **2019-04-12** Revised Fiscal Note Requested
- **2019-04-12** Committee Report--Bill Concurred as Amended
- **2019-04-12** Rereferred to Committee `referral-committee`
- **2019-04-13** Hearing
- **2019-04-13** Committee Executive Action--Bill Concurred as Amended
- **2019-04-13** Committee Report--Bill Concurred as Amended
- **2019-04-13** Printed - New Version Available
- **2019-04-15** Scheduled for 2nd Reading
- **2019-04-15** Revised Fiscal Note Received
- **2019-04-15** Revised Fiscal Note Signed
- **2019-04-15** Revised Fiscal Note Printed
- **2019-04-15** 2nd Reading Motion to Amend Failed `amendment-failure`
- **2019-04-15** 2nd Reading Concurred `reading-2`
- **2019-04-16** Scheduled for 3rd Reading
- **2019-04-16** 3rd Reading Concurred `passage, reading-3`
- **2019-04-16** Returned to House with Amendments
- **2019-04-23** Scheduled for 2nd Reading
- **2019-04-23** 2nd Reading Senate Amendments Concurred `amendment-passage, amendment-amendment, reading-2`
- **2019-04-24** Scheduled for 3rd Reading
- **2019-04-24** 3rd Reading Passed as Amended by Senate `passage, reading-3`
- **2019-04-24** Sent to Enrolling
- **2019-04-25** Returned from Enrolling
- **2019-04-26** Printed - Enrolled Version Available
- **2019-04-26** Signed by Speaker
- **2019-04-30** Signed by President
- **2019-05-01** Transmitted to Governor `executive-receipt`
- **2019-05-10** Signed by Governor `executive-signature`
- **2019-05-20** Chapter Number Assigned

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/48900868-f583-4865-a10b-0e3694507f8b`. Confidence: reported (aggregated from official Montana legislature records).