The Department of Environmental Quality adopted amendments to the Chapter 100 definition sections 252:100-1-3, 252:100-8-1.1, 252:100-37-2, and 252:100-39-2 to clarify and/or remove redundant definitions from Chapter 100. Among the changes is a refined definition for volatile organic compounds including an exemption for tert-butyl acetate. These changes will clarify these terms as they are meant to be used in the chapter. http://www.oar.state.ok.us/oar/codedoc02.nsf/frmMain?OpenFrameSet&Frame=Main&Src=_75tnm2shfcdnm8pb4dthj0chedppmcbq8dtmmak31ctijujrgcln50ob7ckj42tbkdt374obdcli00.