Forest industry groups filed a petition with the U.S. Court of Appeals for the District of Columbia Circuit on August 19 to extend the appeals deadline for a case that vacated a rule exempting biomass from significant deterioration permits. The groups, including the American Forest and Paper Association, asked the court to extend the August 26 deadline to appeal until after the Supreme Court determines whether it will consider challenges against Environmental Protection Agency greenhouse gas regulatory programs. The next day, environmental groups, including the Center for Biological Diversity, urged the court to deny the forest industry petition. In a July 12 decision, the court struck the agency rule exempting biomass from requiring Title V and prevention of significant deterioration permits.