On August 7, 2017 the Clean Water Act Methods Update Rule (MUR) was signed. The MUR is promulgating changes to analytical test procedures required under the Clean Water Act. Revised EPA methods and methods published by voluntary consensus bodies such as ASTM are included in the changes. Furthermore, the ability to apply for EPA review of Alternative Test Procedures (ATPs) will also be allowed. Finally, in order to keep up with current innovations, there will be increased flexibility in the regulation community. More information can be found at www.regulations.gov or at Clean Water Act Methods Update Rule