Your Quick Guide to PCNs in Construction
Before breaking ground on any project that falls under nationwide permits, there’s a critical step that many project managers and construction leaders need to understand: the pre-construction notification (PCN).
At a Glance:
- A pre-construction notification is a written submission to the U.S. Army Corps of Engineers required before certain construction activities can begin under a nationwide permit.
- PCNs help the district engineer evaluate whether the proposed activity meets general conditions and will have minimal adverse effects on the environment and surrounding areas.
- Not every nationwide permit requires a PCN, but when one does, the prospective permittee must submit it before starting any construction work.
- A complete PCN includes details about the proposed work, the project site, potential impacts to wetlands or historic properties, and any required compensatory mitigation plans.
- Submitting a thorough and accurate PCN can prevent costly delays, rework, and compliance issues down the line.
Pre-construction notifications serve as a bridge between planning and execution, giving regulatory agencies the information they need to evaluate a project’s potential impact. For construction leaders managing commercial or multi-family projects, understanding PCNs is a practical necessity that can save time, money, and headaches.
What Exactly is a Pre-Construction Notification?
A pre-construction notification is a formal document submitted to the U.S. Army Corps of Engineers (USACE) district engineer before a prospective permittee begins work under a nationwide permit (NWP). Nationwide permits are general permits issued by the Corps that authorize specific categories of construction activities in waters of the United States, including wetlands, riparian areas, and other regulated areas.
The PCN gives the district engineer a chance to review the proposed activity and determine whether it satisfies the terms and conditions of the applicable nationwide permit. This includes evaluating whether the project will result in more than minimal adverse effects on the aquatic environment, adjacent property, or designated critical habitat.
In simple terms, the PCN is a heads-up to the Corps that says, “Here’s what we plan to do, here’s where we plan to do it, and here’s how we plan to minimize any negative impact.”

When is a Pre-Construction Notification Required?
Not every project that falls under a nationwide permit triggers the need for a PCN. However, several situations make it mandatory. A pre-construction notification is typically required when:
- The proposed work involves a discharge of dredged or fill material into waters of the United States.
- The activity may affect listed species, threatened species, or designated critical habitat under the Endangered Species Act.
- The project could impact a historic property listed on or eligible for the National Register of Historic Places.
- The work takes place on tribal lands.
- Regional conditions imposed by the local district engineer require notification for specific activities.
- The project involves certain types of construction like partial demolitions, additions to residential structures or multi-family structures, or work near a storage facility in sensitive environmental areas.
It’s also worth noting that some nationwide permits have specific conditions outlined in Appendix D that require additional information or a PCN regardless of the scope of work. Always check the applicable permit and any regional conditions before assuming notification isn’t needed.
What Should a Pre-Construction Notification Include?
A complete PCN requires appropriate documentation and detailed information about the proposed activity. While requirements can vary slightly depending on the applicable nationwide permit and the district engineer’s office, a standard submission generally includes:
- Project description: A clear explanation of the proposed work, including the purpose, scope, and methods of construction.
- Site location: Maps, coordinates, and descriptions of the project area, including any proximity to wetlands, riparian areas, or critical habitat.
- Impact assessment: An evaluation of potential effects on the aquatic environment, including any expected wetland losses and how the project will maintain minimal adverse effects.
- Mitigation plans: If applicable, compensatory mitigation plans that outline how the prospective permittee will offset unavoidable impacts to aquatic resources.
- Species and habitat considerations: Information about any listed species or threatened species that may be present in or near the project area.
- Historic property review: Documentation showing whether the project could affect historic properties, and any coordination with the State Historic Preservation Officer.
- Adjacent property details: Information about neighboring properties and any potential effects the construction work may have on them.
For non-federal permittees and non-federal applicants, providing thorough and accurate documentation upfront is one of the best ways to avoid requests for additional information, which can slow down the review process and push back your project timeline.

How Does a PCN Move Through the Review Process?
Once the district engineer receives a complete pre-construction notification, a review period begins. During this time, the Corps evaluates the submission against the general conditions and specific conditions of the applicable nationwide permit. Here’s a general overview of how the process works:
1. Submission and Completeness Check
The district engineer’s office reviews the PCN to confirm all required information has been provided. If the submission is incomplete, the office will request additional information before the review can proceed.
2. Evaluation of Impacts
The Corps assesses whether the proposed activity will result in more than minimal adverse effects on the aquatic environment, adjacent properties, endangered species, or historic properties. This may involve coordination with other agencies such as the U.S. Fish and Wildlife Service or the State Historic Preservation Officer.
3. Decision
After review, the district engineer will either verify that the activity qualifies under the nationwide permit, require modifications to the project, request compensatory mitigation, or determine that an individual permit (IP application) is needed due to more than minimal adverse effects or a substantial change in the project scope.
4. Authorization
If the project is verified under the NWP, the prospective permittee receives authorization to proceed with construction work. This authorization may come with specific conditions that must be followed throughout the project.
The typical review period is 45 days from receipt of a complete PCN, though more complex projects or those involving listed species, tribal lands, or historic properties may take longer.
Why Pre-Construction Notifications Matter for Your Project
PCNs might seem like just another layer of paperwork, but they play a real role in keeping projects on track and in compliance with federal regulations. Here’s why they matter:
Avoiding Project Delays
Submitting a thorough PCN from the start reduces the likelihood of back-and-forth requests for additional information. This keeps your project moving forward on schedule.
Maintaining Compliance
Nationwide permits come with general conditions and regional conditions that must be met. A proper PCN demonstrates that the prospective permittee has done their due diligence in meeting preconstruction review requirements.
Protecting the Environment
PCNs exist to verify that construction activities won’t cause unacceptable harm to wetlands, riparian areas, endangered species, or other sensitive resources. Compensatory mitigation plans, when required, help offset unavoidable impacts.
Reducing Risk
Projects that skip or rush the notification process risk stop-work orders, fines, and the need to apply for an entirely different permit. For CEOs, project managers, and supervisors, the cost of non-compliance far outweighs the time spent on a well-prepared PCN.
Tips for Submitting a Strong Pre-Construction Notification
For construction teams looking to put their best foot forward, consider the following when preparing a PCN:
- Start the process early, well before your planned construction start date, to allow time for the 45-day review window.
- Work with a chartered engineer or environmental consultant to prepare accurate impact assessments and mitigation plans.
- Double-check that your submission aligns with the specific nationwide permit you’re applying under, including any regional conditions.
- Include all supporting materials such as site plans, environmental surveys, and historic property evaluations in your initial submission to avoid delays.
- Keep organized records of all correspondence with the district engineer’s office for future reference.

Let Elevate Construction Help You Build with Confidence
Navigating pre-construction notifications, compliance requirements, and permit applications doesn’t have to slow your team down. At Elevate Construction, we specialize in pre-construction services and the organizational systems that help construction teams thrive. From planning and preconstruction review requirements to project execution and recovery, our training and consulting services are built for superintendents, project managers, and field leaders who want to work smarter and deliver results. If you’re ready to take the complexity out of your next project and set your team up for success, reach out to Elevate Construction today.












