Section 401 certification and permit conditioning under the Clean Water Act is one of the most significant tools for states to influence federally permitted activities involving discharges into navigable waters. However, states are required to set conditions within one year or they forgo their ability to do so. In practice, the one-year review is difficult for states to meet and led to a common practice known as “withdraw and resubmit” in which states could reset the clock. But in Hoopa Valley Tribe v. Federal Energy Regulatory Comm’n, the D.C.

The Endangered Species Act defines an endangered species as one at risk of extinction “throughout all or a significant portion of its range.” The U.S. Department of the Interior (DOI) has repeatedly defined “significant portion” to mean an area of the range essential to species persistence. This definition is redundant, and various iterations of the definition have been struck down in the past. At the same time, other proposals to list a species only in a portion of its range fail to satisfy the statutory requirements.

The Clean Water Act (CWA) requires states to calculate total maximum daily loads (TMDLs) of individual pollutants that impair their waters.

The U.S. Department of the Interior and National Oceanic and Atmospheric Administration recently finalized comprehensive changes in how the Endangered Species Act (ESA) is implemented. These changes address the species listing process, critical habitat designations, protections for threatened species, and the §7 consultation process.

Federal dams have been the focus of major disputes involving application of the Endangered Species Act (ESA), especially its §7 prohibitions on federal actions causing jeopardy to protected species. Operating agencies and project beneficiaries have sought to keep the ESA from restricting dam operations, including by arguing that such operations are non-discretionary and thus exempt. In proposing new ESA implementing rules, the Trump Administration suggested, but did not formally propose, that ongoing federal actions should be considered part of the “environmental baseline” for §7 purposes.

As human populations have more than doubled since 1960, pressure on wild fish stocks has increased dramatically. This Article argues that the establishment of an electronic reporting and monitoring regime in U.S. fisheries is both necessary to ensure compliance with statutory imperatives to manage them according to best available science, and essential for continued long-term viability of the U.S. fishing industry.

A recent headline on the front page of the Wall Street Journal hailed the opening of the nation's first "butterfly bank." The "deposits" in this unusual bank are conservation credits earned by preserving an important area of habitat for the Quino checkerspot butterfly, an endangered species restricted to California. The bank's intended customers are other landowners who hope to develop other sites where the butterfly occurs. In order to do so, they can buy credits from the private entrepreneur who established the butterfly bank.

The 1999 National Nuclear Security Administration Act (NNSA Act) threatens to reverse 20 years of reforms and court decisions intended to bring the U.S. Department of Energy (DOE) into compliance with environmental laws and regulations. The NNSA Act, enacted in the wake of allegations of spying at Los Alamos nuclear weapons laboratory in New Mexico, established a semi-autonomous agency within DOE—the National Nuclear Security Administration (NNSA). The NNSA operates nine laboratories and facilities within the U.S. nuclear weapons complex.

Under the public welfare doctrine, certain regulatory crimes require no showing of the traditional mens rea, or "guilty mind," as a predicate to criminal liability. The doctrine has been used to relax intent requirements in criminal statutes when the public welfare is at stake and is predicated upon the fact that the defendant had notice that the dangerous activity is regulated. A majority of courts place the criminal provisions of the Clean Water Act (CWA) within the public welfare doctrine.

Editors' Summary: This Article is the second in a series intended to supplement Federal Wetlands Law, a primer that ELR published in 1993 and subsequently incorporated into the Wetlands Deskbook. The Article, which refers to the primer but stands on its own, focuses primarily on where wetlands law has changed since the primer's publication. The Article first discusses nationwide and general permits under Clean Water Act §404, including a new nationwide permit that applies to single-family homesites.