The Department of Natural Resources proposed to amend Mo. Code Regs. Ann. tit.10, §6.075, Maximum Available Control Technology. The change would adopt by reference new emission standards, updates, and clarifications to existing federal rule 40 C.F.R. 63. There will be a public hearing on September 29, 2011, and the deadline for public comment is October 6. http://www.sos.mo.gov/adrules/moreg/current/v36n15/v36n15b.pdf pp. 1812-14.