Perrin Quarles Associates

PQA is an environmental consulting firm providing program support for the public sector, with a major focus on air quality and climate change. PQA provides regulatory and policy support under the Clean Air Act and develops environmental information systems and software applications. The company supports international greenhouse gas reduction initiatives and is recognized globally for contributions to the implementation of Kyoto Protocol technology. PQA has over 100 staff serving the U.S. EPA, state environmental agencies, the United Nations Framework Convention on Climate Change Secretariat, Environment Canada, the New Zealand Ministry of Economic Development, and the Australia Department of Climate Change, all from PQA’s Charlottesville, Virginia offices. PQA employees have a passion for technical and environmental issues and a commitment to excellence in their work. To learn more about PQA or to view current job opportunities, please visit