The North American Association of Environmental Education produced Excellence in Environmental Education: Guidelines for Learning (K-12) in 2010. The publication was developed to support state and local environmental education efforts by setting expectations for performance and achievement in grades 4, 8, and 12.
North American Association for Environmental Education. Guidelines for Excellence: K-12 Learning. Washington, DC: North American Association for Environmental Education, 2010. Web. 6 April 2016.