HB 2955 Arizona House · 57th Legislature - Second Regular Session

gasoline formulations; air quality

HB 2955 sets seasonal fuel standards for gasoline sold in Maricopa County (Arizona's most populous county, exceeding 1.2 million residents) and other areas designated as "Area A." From March 31 to October 31, gasoline must meet ASTM D4814 standards with specific vapor pressure limits. From November 1 to March 31, gasoline must comply with California's Phase 2 reformulated gasoline standards and the same vapor pressure limits. The bill also establishes a 7-day review process for fuel suppliers to request temporary exemptions during ethanol or gasoline supply shortages, requiring proof of imminent shortages and state agency approval.

Issues: ✓ Environment ✓ Transportation

Bill status passed 3 of 5 stages cleared

Introduction

Jan 2026

Committee Review

Feb 2026

House Passage

Feb 2026

Senate Passage

Governor

Introduced Jan 29, 2026 Last action Mar 31, 2026

Maddy AI version diff · 1 comparison

What changed between versions

Introduced Version → House Engrossed Version (02/26/2026) · 4 edits · Feb 26, 2026

MODERATE

The bill was restructured to formally amend two separate Arizona Revised Statute sections (3-3493 and 3-3494) regarding fuel reformulation in different geographic areas. A new provision was added requiring the Department of Environmental Quality to adopt specific rules for recordkeeping and compliance reporting. Additionally, the conditions for the law to take effect were updated to include a requirement that a specific prior legislative condition be met before the EPA approval deadline.

Scope change

The bill now explicitly addresses two distinct statutory sections covering Area A and Area C, whereas the original text appeared to focus primarily on Area A.

REQUIREMENT

Added a new subsection (H) in Section 1 and Section 2 requiring the Department of Environmental Quality to adopt rules for recordkeeping, reporting, and analytical methods to prove fuel compliance.

TIMELINE

Updated the conditional enactment clause for Section 2 to require that a specific prior legislative condition (from Laws 2017, 2022, and 2024) be met before the EPA approval deadline of July 1, 2030.

ELIGIBILITY

Modified the exemption criteria in Section 3 to clarify that the fuel reformulation rules do not apply to fuel used at motor vehicle proving grounds or racing events.

TECHNICAL

Corrected formatting and numbering errors in the petition requirements for oxygenate and gasoline shortages, clarifying the structure of the required documentation.

Floor votes · House Feb 26, 2026

How they voted

31–22

Passed · 7 other

Total votes 60

Feb 26, 2026

D Democratic27

22 Nay 5

81% Nay

R Republican33

31 Yea 2

93% Yea

Vote distribution

All Yea All Nay Mixed No data

Full legislative history

Actions timeline

Total actions

Key actions

Committee

Amendments

Mar 31, 2026

Upper · Passed

DPA/SE

upper

Feb 26, 2026

Lower · Passed

PASSED

lower

Feb 24, 2026

Lower · Passed

lower

Feb 3, 2026

Lower · Passed

lower

1 primary · 0 co-sponsors