United States. Office of the Federal Register. Federal Register, Volume 74, Number 99, May 26, 2009, Pages 24695-25144, periodical, May 26, 2009; (https://digital.library.unt.edu/ark:/67531/metadc132961/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .