| http://www.w3.org/ns/prov#value | - This Tribe explained that its renewable energy plans focus, in part, on production of biogas from animal, cheese, and other organic material, and requested that EPA either exempt biogas from the contaminant legitimacy criterion or require that, overall, contaminants in gaseous fuels not be ???significantly higher??? in concentration than contaminants found in traditional fuel products that the com
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