Hawaii's five largest airports have achieved Level 3 certification under the Airport Carbon Accreditation program, marking a step toward the state's 2045 net zero emissions goal. The airports include Daniel K. Inouye International, Kahului, Ellison Onizuka Kona International, Lihue, and Hilo International. Level 3 requires mapping all airport-wide emissions, reducing below a three-year rolling average, and engaging partners on third-party emissions. The Hawaii Department of Transportation has set a 50% reduction in airport-controlled carbon by 2030 and net zero by 2045. Key strategies include vehicle electrification, stakeholder collaboration, and an expanded emissions inventory that covers aircraft and ground transport. The department's Energy Security and Waste Reduction Plan outlines clean transportation priorities. Success depends on continued state and federal funding for infrastructure projects.
