The PIOGA Press
(by Lisa Bruderly and Kevin Garber)
On January 23, the U. S. Environmental Protection Agency and the U. S. Army Corps of Engineers pre-published the final Navigable Waters Protection (NWP) Rule, which (yet again) redefines the scope of waters regulated under the Clean Water Act (CWA). In particular, the final NWP Rule revises the definition of “waters of the United States” (WOTUS) in 12 federal regulations and will become effective 60 days after publication in the Federal Register.
Once effective, the NWP Rule will almost certainly be challenged in the courts by NGOs and other interested parties. These challenges could result in the courts staying the NWP Rule in some, or all, states while the lawsuits are litigated.
The NWP Rule is the final step in fulfilling the Trump administration’s promise to repeal and replace the Obama administration’s 2015 Clean Water Rule (CWR), which many believe improperly expanded the scope of waters regulated under the CWA. Effective December 23, 2019, EPA and the Corps repealed the CWR and restored the WOTUS definition that existed before 2015. Prior to the repeal, the pre2015 rule’s WOTUS definition applied in approximately half of the states, while the CWR’s WOTUS definition applied in the remainder (including Pennsylvania), resulting in certain states having more federally regulated waters than other states.
The stated intent of the NWP Rule is to provide “clarity, predictability and consistency” regarding CWA jurisdiction. Consistent with President Trump’s February 28, 2017, Executive Order, the NWP Rule heavily reflects and relies upon Supreme Court Justice Antonin Scalia’s interpretation of the pre-2015 rule’s definition of WOTUS, as expressed in his plurality opinion in the seminal case, Rapanos v. …