The Massachusetts Department of Energy Resources issued final rules August 17 setting eligibility requirements for biomass facilities to receive financial incentives through the state’s renewable energy program. The final adopted regulations, which take effect immediately, make woody biomass eligible for renewable energy credits under the state’s Renewable Energy Portfolio Standard Class 1. Several environmental organizations praised the newly adopted biomass regulations. The new rules also stipulate that particularly inefficient facilities are no longer eligible for ratepayer-funded incentives.