relative to eligible biomass technology in the renewable portfolio standards.

SB 539 reclassifies all eligible biomass technologies under "Class III" for renewable energy compliance, replacing previous subcategories. It specifically affects existing biomass plants (under 25 MW or operating in Coos County by 2026) and landfill methane projects. The bill removes methane gas from Class III eligibility if landfill sites exceed 10 MW total capacity, requiring new landfill projects to meet strict size limits. This change streamlines eligibility rules but restricts certain methane sources from qualifying under the renewable portfolio standards.