40 CFR 136 Methods Update Rule 2017 (MUR)


The US EPA updated the list of approved analytical methods in 40 Code of Federal Regulations (CFR) 136 with changes adopted in the Clean Water Act Methods Update Rule (MUR) - 2017. EPA also revised the procedure for determination of the Method Detection Limit (MDL) as part of the MUR 2017. The California Environmental Laboratory Accreditation Program (ELAP) has updated accreditation offerings in the Field of Testing (FOT) forms to comply with the MUR 2017. Changes to the FOT forms include updates of methods to newer revisions, addition of new method offerings, and removal of methods no longer approved in 40 CFR 136.