*>EPA

Clean Water Act Section 401
Water Quality Certification Improvement Rule

June 2022

EPA is proposing a rule to support a predictable, efficient, stable, and transparent water quality certification
process under Clean Water Act (CWA) section 401. The Agency's proposed rule is grounded in the fundamental
principles of cooperative federalism that have been essential to the effective implementation of the CWA by
EPA, states, territories, and Tribes over the past 50 years. For more information on submitting written comment
on the proposal or to register for the virtual public hearing on the proposed rule, see www.epa.gov/cwa-401.

Overview: Section 401 Empowers States, Territories, and Tribes to Protect Vital
Waters

Under the Clean Water Act section 401, Congress provides states, territories, and Tribes with a tool to protect
their waters from adverse impacts from federally licensed or permitted projects. Under section 401, a project
proponent for a federal license or permit which may result in a discharge into waters of the United States must
obtain a water quality certification from the certifying authority. Certifying authorities are typically a state
(which includes territories), or a Tribe with treatment in a similar manner as a state (TAS).

Federal licenses and permits that may require section 401 water quality certification include CWA section 404
dredge and fill permits from the Army Corps of Engineers (Corps), hydroelectric licenses from the Federal Energy
Regulatory Commission (FERC), and CWA section 402 pollutant discharge permits from EPA. A broad range of
individuals and entities seek section 401 certification for these kinds of projects, including corporations and
other businesses, federal and state agencies (e.g., state departments of transportation), contractors, and
individual citizens. Thousands of water quality certifications are granted each year for a wide range of projects.

Actors in this process include:

•	Certifying authorities. The state, territory, or Tribe with TAS where the discharge from the federal
project originates or EPA if a state, territory, or Tribe does not have jurisdiction over the area.

•	Federal licensing or permitting agency. The federal agency whose license or permit is subject to section
401 certification.

•	Project proponents. Those seeking a section 401 certification, including project applicants or federal
agencies seeking certification for permits and licenses.

EPA first promulgated implementing regulations for water quality certification in 1971, which remained in effect
until the Agency promulgated the 2020 CWA Section 401 Certification Rule (2020 Rule). After reviewing the
2020 Rule pursuant to Executive Order 13990, the Agency announced its intention to revise the 2020 Rule to
better uphold the role of states, territories, and Tribes under section 401 as an essential component of the Act's
system of cooperative federalism. The Agency's actions will be grounded in robust stakeholder input.

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Key Components of EPA's Proposed Rule

Pre-Filing Meeting Requests

Project proponents would request a pre-filing meeting from a certifying authority at least 30 days before
requesting certification unless the certifying authority waives or shortens this requirement. This approach
encourages early engagement between project proponents, federal agencies, and certifying authorities, while
providing certifying authorities flexibility to determine if a pre-filing meeting is necessary. This allows the
certification process to move efficiently by providing an early opportunity (if deemed necessary) to address any
issues or questions.

Requests for Certification

All requests for certification would include: (1) a copy of a draft license or permit; and (2) any existing and
readily available data or information related to potential water quality impacts from the proposed project.
Certifying authorities may define, in their regulations, other necessary elements for a request for certification. If
they choose not to do so, the proposed rule includes a default list of five elements that must be included in the
request. This approach promotes an efficient and transparent certification process by clearly defining when a
project proponent must request certification, and by allowing certifying authorities to clearly define in their
regulations what other information, if any, they need to start their certification review. Starting certification only
after the license or permit is drafted and shared allows the certifying authority to see the federal agency's
proposed conditions, increasing the efficiency of the section 401 process.

Reasonable Period of Time

For the first time, the EPA regulations would be updated to provide certifying authorities with a role in
determining the "reasonable period of time" to review the request for certification. The statutory "reasonable
period of time" for reviewing a request for certification begins when a certifying authority receives the request
for certification in accordance with its submission procedures. The certifying authority may collaborate with the
federal licensing or permitting agency to establish a reasonable period of time to review the request for
certification. If the certifying authority and federal agency do not reach an agreement within 30 days on the
length of time for review, it will default to 60 days from receipt of the request for certification. The default is
automatically extended upon notice by the certifying authority (before the end of the reasonable period of time)
that the certifying authority's public notice requirements will take longer than 60 days or if there is a force
majeure event. This proposal reflects the unique needs of different certifying authorities by allowing for
automatic extensions due to public notice procedures or extenuating events such as natural disasters. Further,
in the event there is no agreement, this approach establishes a default time period for review to provide
stakeholders with certainty and ensure the certification process moves in a predictable and transparent manner.

Scope of Review

EPA proposes that when a certifying authority reviews a request for certification, it looks at whether the activity
as a whole will comply with water quality requirements, which include water quality-related state or Tribal laws.
This approach allows a certifying authority to holistically evaluate the water quality impacts of a federally
licensed or permitted project. Certifying authorities may evaluate impacts from any aspect of the project activity
with the potential to affect water quality. This approach reinstates the broader and more environmentally
protective scope of review that the Supreme Court affirmed in 1994.

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Certification Decisions

A certifying authority may make one of four certification decisions on a request for certification: (1) grant
certification; (2) grant certification with conditions; (3) deny certification; or (4) expressly waive certification.
Each decision must be in writing and include minimum information defined in the proposed rule. This approach
provides certifying authorities with the flexibility to provide additional, supporting information for any
certification decision, while defining the minimum requirements of that decision to promote good government
and allow for stakeholder clarity and certainty.

Figure 1:

Key components in EPA's proposed CWA Section 401 Water Quality Certification Improvement Rule

Project
proponent
submits a pre-
filing meeting
request (unless
waived by the
certifying
authority)

Project
proponent
submits a
request for
certification to
the certifying
authority

Certifying authority and
federal agency
collaboratively determine
how much time the
certifying authority will
have to review the request
(up to 1 year), otherwise the
review period defaults to 60
days, unless an automatic
extension applies

Certifying authority
analyzes whether
the project, when
evaluated as the
activity as a whole,
will meet water

quality
requirements

Certifying authority
determines whether
to:

(1)	grant certification

(2)	grant certification
with conditions

(3)	deny certification,
or (4) expressly waive

certification

< 30 days	< 30 days

Reasonable Period of Time (< 1 year)

Additional Provisions of EPA's Proposed Rule

Federal Agency Review

The proposed rule would limit federal agency review of certification decisions to whether: (1) the certifying
authority has indicated the nature of the certification decision (i.e., grant, grant with conditions, deny, or
waiver); (2) the proper certifying authority issued the decision; (3) the certifying authority provided public notice
on the request for certification; and (4) the decision was issued within the reasonable period of time. If federal
agency review reveals that the certifying authority did not indicate its decision or did not provide public notice
on the request for certification, the federal agency would be required to provide the certifying authority with an
opportunity to remedy the deficiency, provided the time period for review has not expired or if the time can be
extended. Consistent with the statute, a waiver of certification may only occur if the certifying authority fails or
refuses to act within the reasonable period of time. This approach clarifies the limited circumstances under
which waivers occur, which provides certainty for certifying authorities, project proponents, and federal
agencies.

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Neighboring Jurisdictions

EPA is proposing to provide more detail and explanation on the neighboring jurisdiction process under section
401(a)(2), including the roles of the actors involved, defining when the neighboring jurisdiction process begins,
and the minimal contents of a notification to EPA. This approach clarifies a valuable tool that allows states,
territories, and Tribes with treatment in a similar manner as a state (TAS) status to participate in the federal
licensing or permitting process where EPA has determined that a proposed project subject to section 401
certification in another jurisdiction may affect their water quality.

Modifications

Certifying authorities and federal agencies may agree to modify a grant of certification (with or without
conditions). However, only the agreed upon portions may be modified. The proposed rule clarifies that the
certifying authority may not unilaterally modify the certification decision, and that the nature of certification
decision (i.e., grant, deny, waiver) cannot be changed. This approach allows certifying authorities and federal
agencies to respond to changing circumstances in an efficient, transparent way. At the same time, it protects
project proponent interests by clarifying that modifications may not be done unilaterally and may not change
the nature of a certification decision.

Tribes with Treatment in a Similar Manner as a State

The proposed rule includes provisions for Tribes to obtain TAS status for the section 401 certification program or
to obtain TAS to act as a neighboring jurisdiction under section 401(a)(2), making it the first time Tribes will have
this option, without also applying for TAS for water quality standards under section 303(c). This approach
promotes tribal autonomy and efficiency by providing additional opportunities for Tribes to obtain TAS to
participate in the water quality certification process.

Enforcement and Inspection

The proposed rule does not include regulatory text on enforcement and removes the previous regulatory text on
inspections. Enforcement is not expressly addressed in the text of section 401, so EPA is not proposing
regulations. Instead, the preamble provides guidance on enforcement and inspection issues to promote good
government and clarity.

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