Regulation, under Clean Water Act Section 401, says states must finish project's water-quality review in one year.

Energy producers are welcoming a proposed change to Clean Water Act regulations that would limit states’ rights to review Section 401 certifications.

In an attempt to speed construction of multistate pipelines, liquefied natural gas terminals and cross-border infrastructure projects, President Donald Trump has signed two broad executive orders directing agencies to change current review processes, including Section 401 permits under the Clean Water Act.