The Department of Environmental Quality proposed amendments to Mont. Admin. R. 17.30.660, nutrient standard variances. The amendments pertain to end-of-pipe treatment requirements that were modified and updated in a department circular. The proposed changes do not alter any of the general variance requirements. Public hearings will be held on April 10 and 11. Public comment is due April 13. See http://sos.mt.gov/Portals/142/ARM/2018/MAR18-04.pdf?dt=1519403754306(pp. 377-81).