Section 106 review can be an early public sign that a federally connected project may affect a historic property. It isn't a bid notice, a construction contract, or a promise that work will move forward. It is evidence that a project has entered a formal review process.
That can matter to architects, engineers, contractors, preservation consultants, developers, and specialty trades. The records may reveal a project while its scope is still taking shape and before related work reaches the market.
What Section 106 actually does
Section 106 of the National Historic Preservation Act requires federal agencies to take into account the effects of their undertakings on historic properties and give the Advisory Council on Historic Preservation a reasonable opportunity to comment. In this context, a historic property is one listed in or eligible for the National Register of Historic Places. That can include a qualifying traditional cultural property or traditional cultural place. When tribal lands or historic properties of religious and cultural significance to a tribe are involved, a Tribal Historic Preservation Office can also have an important role, depending on the tribe, land status, and functions assumed.
Two points matter here. First, there must be a federal undertaking, which can include a project an agency carries out, funds, assists, permits, licenses, or approves. Second, that undertaking must have the potential to affect historic properties. Federal involvement by itself doesn't mean every project requires the full Section 106 review process.
Section 106 also isn't a preservation grant program and it doesn't require a preservation outcome. Its purpose is to make sure the federal agency considers effects on historic properties before making its decision. Federal property transfers and disposals can create their own review questions; Preserve Signal's guide to the National Historic Lighthouse Preservation Act explains one specialized disposal and stewardship process for excess historic light stations.
The four steps to watch
The standard process has four broad steps: initiate the process, identify historic properties, assess adverse effects, and resolve adverse effects. A review can conclude before the fourth step if the agency properly finds that no historic properties are affected or that the undertaking will have no adverse effect. When recordation is used as mitigation for an engineering or industrial resource, the Historic American Engineering Record may become part of that process.
- Initiation records may identify the federal agency, applicant, proposed undertaking, location, and other consulting parties.
- Identification work may define the area of potential effects and evaluate properties for National Register eligibility.
- The agency then assesses whether the undertaking may alter characteristics that make an identified historic property eligible for the National Register.
- If the agency finds an adverse effect, consultation turns to ways to avoid, minimize, or mitigate it. The result is often documented in a Memorandum of Agreement. Programmatic Agreements can be used in circumstances allowed by the regulations. A mitigation commitment involving a historic landscape may call for documentation through the Historic American Landscapes Survey, depending on the consultation agreement and NPS review requirements.
The important word is may. These records can contain useful project information, but the amount and timing of public information vary. Some details may also be withheld to protect sensitive historic property information.
What the paperwork can reveal
A public notice, consultation letter, effect finding, environmental review document, or agreement may provide enough information to connect the review to the larger project. Useful details can include:
- The federal agency and the federal action involved
- The applicant, owner, or other party advancing the undertaking
- The project's purpose and location
- The area of potential effects
- Historic properties that have been identified or are being evaluated
- Consulting parties, public meetings, and comment periods
- The agency's finding of effect
- Measures being considered to avoid, minimize, or mitigate adverse effects
None of that automatically creates an open opportunity. It does show that a real proposal is being defined, reviewed, and documented.
What the record doesn't tell you
A Section 106 milestone isn't the same thing as a project schedule or procurement decision. The review may run alongside planning under the National Environmental Policy Act, permitting, design, funding, or other approvals. Those processes don't always move at the same speed.
A project can also change, pause, lose funding, or be canceled after review begins. And the absence of a document online doesn't prove that consultation isn't happening. Federal agencies must provide for public involvement, but the approach depends on the nature and complexity of the undertaking and the likely public interest.
How to use the signal
Treat Section 106 as one part of the project trail. A capital plan can show intent. An appropriation or grant can show funding. A review document can clarify the property, proposed work, and unresolved effects. A later design selection, permit, or procurement notice can show that the project is moving closer to the market.
After the first record appears, keep checking the federal agency, owner, applicant, and relevant state or local sources. Look for newer plans, funding actions, meeting materials, design contracts, permits, and procurement documents. The latest reliable evidence should carry the most weight.
Preserve Signal connects those scattered records so members can see credible historic preservation and adaptive reuse work earlier, understand its current stage, and recognize when it may matter to their firm.