Presidential Order 13274 September 18th 2002
Sources: http://www.fhwa.dot.gov/stewardshipeo/ http://www.fhwa.dot.gov/stewardshipeo/eo13274.htm http://www.presidency.ucsb.edu/ws/index.php?pid=61370&st=&st1= http://ceq.eh.doe.gov/nepa/regs/eos/eo13274.pdf