---
type: "Bill"
title: "ENVIRONMENTAL QUALITY – Repeals and adds to existing law to establish provisions regarding ore processing by cyanidation."
description: "ENVIRONMENTAL QUALITY – Repeals and adds to existing law to establish provisions regarding ore processing by cyanidation."
jurisdiction: "us/states/id"
legislature: "Idaho Legislature"
session: "2025"
identifier: "S 1170"
citation: "Idaho S 1170 (2025)"
classification: ["bill"]
subjects: ["ENGINEERS AND SURVEYORS", "ENVIRONMENT", "LAND USE", "MINERALS and MINING", "NATURAL RESOURCES", "OCCUPATIONAL AND PROFESSIONAL LICENSES", "POLLUTION"]
status: "enacted"
primary_sponsors: []
version_count: 1
action_count: 16
vote_count: 2
first_action: "2025-03-12"
last_action: "2025-04-03"
source: "openstates"
source_identifier: "ocd-bill/50eb3812-9800-4c5a-9819-7bddd23b423e"
source_url: "https://legislature.idaho.gov/sessioninfo/2025/legislation/S1170/"
source_hash: "aaa562b68c5c065b2d771b52a48ee01f6265d69472115d9167a711cf95caa495"
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-id"]
---

# Idaho S 1170 (2025) — ENVIRONMENTAL QUALITY – Repeals and adds to existing law to establish provisions regarding ore processing by cyanidation.

## Version chain

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

1. **Bill Text** (committee substitute) — [source](https://legislature.idaho.gov/wp-content/uploads/sessioninfo/2025/legislation/S1170.pdf)

## Votes

- Read Third Time in Full – — **61–8** (pass) · lower
- Read third time in full – — **30–4** (pass) · upper

## Sponsors

- STATE AFFAIRS COMMITTEE — primary (organization)

## Timeline

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

- **2025-03-12** Introduced; read first time; referred to JR for Printing `introduction`
- **2025-03-13** Reported Printed; referred to Resources & Environment
- **2025-03-17** Reported out of Committee with Do Pass Recommendation; Filed for second reading `committee-passage-favorable`
- **2025-03-18** Read second time; filed for Third Reading `reading-2`
- **2025-03-19** Read third time in full – PASSED - 30-4-1AYES – Adams, Anthon, Bearg(Rabe), Bernt, Bjerke, Blaylock, Burtenshaw, Carlson, Cook, Den Hartog, Galloway, Grow, Guthrie, Harris, Hart, Keyser, Kohl, Lakey, Lenney, Lent, Nichols, Okuniewicz, Ricks, Ruchti, Semmelroth, Shippy, Toews, Ward-Engelking, Woodward, ZitoNAYS – Foreman, Taylor, Wintrow, ZuiderveldAbsent and excused – VanOrdenFloor Sponsor - HartTitle apvd - to House `passage`
- **2025-03-20** Received from the Senate, Filed for First Reading
- **2025-03-20** Read First Time, Referred to Resources & Conservation `reading-1, referral-committee`
- **2025-03-25** Reported out of Committee with Do Pass Recommendation, Filed for Second Reading `committee-passage-favorable`
- **2025-03-26** Read second time; Filed for Third Reading `reading-2`
- **2025-03-27** Read Third Time in Full – PASSED - 61-8-1AYES – Alfieri, Andrus, Barbieri, Beiswenger, Boyle, Bruce, Burgoyne, Cannon, Cayler, Cheatum, Clow, Cornilles, Crane(12), Dygert, Ehardt, Ehlers, Erickson, Fuhriman, Furniss, Galaviz, Garner, Handy, Harris, Hawkins, Healey, Hill(Brown), Holtzclaw, Horman, Hostetler, Leavitt, Manwaring, Marmon, McCann, Mendive, Mickelsen, Miller, Mitchell, Monks, Nelsen, Palmer, Petzke, Pickett, Pohanka, Price, Rasor, Raybould, Raymond, Redman, Sauter, Scott, Shepherd, Shirts, Skaug, Tanner(13), Tanner(14), Thompson, Vander Woude, Weber, Wheeler, Wisniewski, Mr. SpeakerNAYS – Achilles, Berch, Church, Egbert, Gannon, Green, Mathias, RubelAbsent – Crane(13)Floor Sponsor - BoyleTitle apvd - to Senate `passage, reading-3`
- **2025-03-28** Returned From House Passed; referred to enrolling `enrolled`
- **2025-03-28** Reported enrolled; signed by President; to House for signature of Speaker
- **2025-03-28** Received from Senate; Signed by Speaker; Returned to Senate `passage`
- **2025-03-31** Reported signed by the Speaker & ordered delivered to Governor `executive-receipt`
- **2025-03-31** Reported delivered to Governor at 10:05 a.m. on 03/31/25 `executive-receipt`
- **2025-04-03** Signed by Governor on 03/31/25 Session Law Chapter 228 Effective: 03/31/2025; 03/31/2025 IDAPA Sunset Clause - SECTION 3 `executive-signature`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/50eb3812-9800-4c5a-9819-7bddd23b423e`. Confidence: reported (aggregated from official Idaho legislature records).