On January 17, 2025, Clean Fuel Standard legislation (SB1120) was introduced in the Hawaii Senate. Companion bill HB1304 was introduced in the House on January 23, 2025. The proposed legislation would require a reduction in transportation fuel carbon intensity of at least 10% below 2019 levels by 2035, extending to at least 50% by 2045. SB1120 passed both chambers with amendments but was not reconciled and reported out of Conference Committee before the Hawaii legislative session ended on May 2, 2025. Both HB1304 and SB1120 were carried over into the 2026 session for continued consideration.
2026 marks the third year that such a bill has come under consideration in Hawaii. A previous version of the bill passed the Senate and moved to the House where it failed to gain traction or passage before the Hawaii legislature adjourned on May 3, 2024.
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