HB 458 New Mexico House · 2025 Regular Session

CARBON DIOXIDE STORAGE STEWARDSHIP ACT

New Mexico's HB 458, the "Carbon Dioxide Storage Stewardship Act," establishes a state oversight system for long-term management of underground carbon storage sites. It creates a fund financed by a $0.10-per-metric-ton fee paid by operators of carbon storage facilities, using the money for post-closure monitoring, leak repairs, and site maintenance. The bill requires operators to prove long-term security and safety before transferring stewardship of a site to the state. This directly affects carbon storage operators and state agencies like the Oil Conservation Division, ensuring ongoing responsibility for sites after injection ends.

Issues: ✓ Energy ✓ Environment

Bill status signed all 5 stages cleared

Introduction

Feb 2025

Committee Review

Mar 2025

House Passage

Mar 2025

Senate Passage

Mar 2025

Signed into Law

Apr 2025

Introduced Feb 18, 2025 Signed Apr 8, 2025

Maddy AI version diff · 1 comparison

What changed between versions

introduced version → Final Version · 5 edits

MODERATE

The bill was restructured from a draft introduction format to a final enacted version, adding specific definitions, creating a new stewardship fund, and establishing rules for transferring responsibility of geologic carbon dioxide storage from the division to the state.

Scope change

The bill now applies to sequestration facilities that commence injection after the effective date, with provisions for existing facilities to transfer stewardship responsibilities to the state upon payment of fees.

DEFINITION

Added detailed definitions for carbon dioxide, division, geologic sequestration, operator, pore space, sequestration facility, and sequestration unit.

FISCAL

Created a new geologic carbon dioxide long-term storage stewardship fund with fees of at least $0.10 per metric ton of carbon dioxide injected.

REQUIREMENT

Established requirements for obtaining a certificate of closure, including demonstrating long-term security and no significant risk of future leakage.

TIMELINE

Set a timeline requiring at least five years after completion of injection activities before a certificate of closure can be granted.

ENFORCEMENT

Added authority for the division to adopt rules and issue orders for implementation of the act.

Floor votes · Senate Mar 22, 2025 · House Mar 11, 2025

How they voted

26–10

Passed · 4 other

Total votes 40

Mar 22, 2025

D Democratic24

12 Yea 10 Nay 2

50% Yea

R Republican16

14 Yea 2

87% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Apr 8, 2025

Signed into law

Signed

executive

Mar 22, 2025

Upper · Passed

passed Senate

upper

Mar 22, 2025

Upper · Passed

floor substitute adopted (1 amendment)

upper

Mar 22, 2025

Executive · Passed

House concurred in Senate amendments

executive

Mar 18, 2025

Upper · Passed

DO PASS committee report adopted

upper

Mar 12, 2025

Introduced

Sent to Senate Finance Committee

upper

Mar 11, 2025

Lower · Passed

passed House

lower

Mar 8, 2025

Lower · Passed

DO PASS, as amended, committee report adopted

lower

Mar 1, 2025

Lower · Passed

DO PASS, as amended, committee report adopted

lower

Feb 18, 2025

Introduced

Sent to House Energy, Environment and Natural Resources Committee & House Appropriations & Finance Committee

lower

5 primary · 0 co-sponsors