The President's Council on Environmental Quality (CEQ) has released three draft National Environmental Policy Act (NEPA) guidance documents on when and how federal agencies must consider greenhouse gas (GHG) emissions and climate change in their analysis of proposed actions; specify when there is a need to monitor environmental mitigation commitments; and clarify use of categorical exclusions. Comments on the draft climate change and mitigation policies are due May 24, 2010. Comments on the draft categorical exclusion policy are due April 9.