The Water and Sewer Authority proposed to amend 21 D.C. Mun. Regs. §15, Discharges to Wastewater System. Changes incorporate by reference changes to the District of Columbia Official Code and the Code of Federal Regulations. The deadline for comment is June 19, 2011. http://www.dcregs.dc.gov/Gateway/NoticeHome.aspx?noticeid=1179052.