---
type: "Bill"
title: "Limit adverse effects analysis"
description: "Limit adverse effects analysis"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2017"
identifier: "HB 99"
citation: "Montana HB 99 (2017)"
classification: ["bill"]
subjects: ["Rule Making", "Water"]
status: "enacted"
primary_sponsors: ["Zach Brown"]
version_count: 1
action_count: 55
vote_count: 9
first_action: "2016-10-12"
last_action: "2017-05-04"
source: "openstates"
source_identifier: "ocd-bill/9166a22a-20ac-4285-be71-67c7d45f070c"
source_url: "http://laws.leg.mt.gov/legprd/LAW0203W$BSRV.ActionQuery?P_SESS=20171&P_BLTP_BILL_TYP_CD=&P_BILL_NO=&P_BILL_DFT_NO=LC0567&P_CHPT_NO=&Z_ACTION=Find&P_SBJT_SBJ_CD=&P_ENTY_ID_SEQ="
source_hash: "1b52522ccc36abc66c6266d15d7bcae5b05e731466af4755f7774304c9062d8e"
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 99 (2017) — Limit adverse effects analysis

## Version chain

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

1. **Enrolled** (enrolled) — [source](http://leg.mt.gov/bills/2017/BillPdf/HB0099.pdf)

## Votes

- Do Concur as Amended — **47–2** (pass) · legislature
- Do Concur — **80–20** (pass) · legislature
- DO PASS AS AMENDED — **14–1** (pass) · legislature
- BE CONCURRED IN — **10–2** (pass) · legislature
- Do Pass — **85–15** (pass) · legislature
- Do Pass — **76–24** (pass) · legislature
- Do Concur — **83–16** (pass) · legislature
- AMD-1 Cohenour D/PASS — **49–0** (pass) · legislature
- Do Concur — **48–1** (pass) · legislature

## Sponsors

- Zach Brown — primary (person)

## Timeline

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

- **2016-10-12** Draft Request Received
- **2016-11-28** Draft to Requester for Review
- **2016-11-28** Draft in Legal Review
- **2016-11-29** Draft in Edit
- **2016-12-05** Draft to Drafter - Edit Review [KWK]
- **2016-12-05** Draft in Input/Proofing
- **2016-12-07** Draft in Final Drafter Review
- **2016-12-07** Bill Draft Text Available Electronically
- **2016-12-08** Executive Director Review
- **2016-12-08** Draft in Assembly
- **2016-12-09** Draft in Final Drafter Review
- **2016-12-09** Bill Draft Text Available Electronically
- **2016-12-09** Pre-Introduction Letter Sent
- **2016-12-13** Pre-Introduction Letter Sent
- **2016-12-14** Introduced `introduction`
- **2016-12-14** Introduced Bill Text Available Electronically
- **2016-12-14** Fiscal Note Requested
- **2016-12-27** Referred to Committee `referral-committee`
- **2017-01-02** First Reading `reading-1`
- **2017-01-02** Fiscal Note Received
- **2017-01-03** Fiscal Note Signed
- **2017-01-03** Fiscal Note Printed
- **2017-01-13** Hearing
- **2017-02-01** Committee Executive Action--Bill Passed as Amended `committee-passage`
- **2017-02-02** Committee Report--Bill Passed as Amended `committee-passage`
- **2017-02-02** Printed - New Version Available
- **2017-02-06** Scheduled for 2nd Reading
- **2017-02-06** 2nd Reading Passed `reading-2`
- **2017-02-07** Scheduled for 3rd Reading
- **2017-02-07** 3rd Reading Passed `passage, reading-3`
- **2017-02-07** Transmitted to Senate
- **2017-02-08** First Reading `reading-1`
- **2017-02-08** Referred to Committee `referral-committee`
- **2017-03-13** Hearing
- **2017-03-20** Committee Executive Action--Bill Concurred
- **2017-03-21** Committee Report--Bill Concurred
- **2017-03-31** Scheduled for 2nd Reading
- **2017-03-31** 2nd Reading Motion to Amend Carried
- **2017-03-31** 2nd Reading Concurred as Amended `reading-2`
- **2017-03-31** Printed - New Version Available
- **2017-04-04** Scheduled for 3rd Reading
- **2017-04-04** 3rd Reading Concurred `passage, reading-3`
- **2017-04-05** Returned to House with Amendments
- **2017-04-11** Scheduled for 2nd Reading
- **2017-04-11** 2nd Reading Senate Amendments Concurred `amendment-passage, reading-2, amendment-amendment`
- **2017-04-12** Scheduled for 3rd Reading
- **2017-04-12** 3rd Reading Passed as Amended by Senate `passage, reading-3`
- **2017-04-13** Sent to Enrolling
- **2017-04-18** Returned from Enrolling
- **2017-04-18** Printed - Enrolled Version Available
- **2017-04-26** Signed by Speaker
- **2017-04-29** Signed by President
- **2017-05-01** Transmitted to Governor `executive-receipt`
- **2017-05-03** Signed by Governor `executive-signature`
- **2017-05-04** Chapter Number Assigned

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9166a22a-20ac-4285-be71-67c7d45f070c`. Confidence: reported (aggregated from official Montana legislature records).