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Short answer: In U.S. waters, you can sometimes dive, photograph, measure, and document a publicly owned historic wreck without a permit when you do not disturb the wreck or its surroundings. Recovering an artifact, excavating, moving an object, damaging the site, or conducting a penetration that causes disturbance is a different activity and generally requires a site-specific archaeological, sanctuary, military-craft, or other authorization. The correct permit depends on who owns the wreck, where it lies, and which protection law applies.
There is no single nationwide shipwreck-salvage permit. Before entering the water, identify the managing authority and get its current rules in writing. A state underwater-archaeology office, a federal land manager, NOAA’s sanctuary superintendent, or the Department of the Navy may control the application. Special wrecks, including RMS Titanic, have additional federal requirements.
Start by separating observation from disturbance
The first question is not whether you are a recreational diver or a professional salvager. It is exactly what you plan to do at the site.
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National Park Service guidance under the Abandoned Shipwreck Act says that, at a minimum, people should be able to freely dive on, inspect, study, explore, photograph, measure, record, fish at, and otherwise enjoy publicly owned shipwrecks when the activity does not disturb or remove parts of the wreck or its immediate environment. That is a baseline for qualifying public sites, not a universal exemption.
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Noncontact observation still has to follow posted closures, no-entry orders, sanctuary regulations, military-craft rules, state underwater-park rules, and any conditions attached to the site. A wreck that is open to divers can still prohibit anchoring, penetration, tooling, collecting, or contact with fragile features.
Activities that normally require authorization
Plan on a permit or other written authorization if you will touch or move an object, break or cut material, excavate sediment, recover an artifact, disturb the seabed, or otherwise alter the wreck site. A project that uses probes, lifting bags, suction, dredging, remotely operated tools, or similar equipment is treated as archaeological work even when the operator calls it salvage.
Penetration is especially fact-specific. Entering a wreck can damage structure, displace artifacts, or disturb sediment. If the managing agency considers that disturbance, ordinary dive access does not cover it.
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Ownership and location determine which rules apply. A wreck can be subject to more than one regime, so an authorization from one office may not be enough.
State submerged lands and the Abandoned Shipwreck Act
The Abandoned Shipwreck Act addresses qualifying abandoned wrecks in rivers, lakes, and coastal waters. The federal government asserted title to wrecks embedded in state submerged lands, wrecks embedded in protected coralline formations, and wrecks on state submerged lands that are listed or eligible for the National Register of Historic Places. The statute transfers title to the state.
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States are expected to preserve recreational exploration while allowing appropriate public or private recovery consistent with historical values and environmental integrity. In practice, the state controls the recovery pathway for a state-owned historic wreck. The National Park Service recommends starting with the state historic-preservation office and its underwater-archaeology office; where no dedicated underwater office exists, contact the appropriate state archaeology office.
A state may use a permit, license, contract, or another form of agreement. The name of the document does not change the central requirement: obtain the state’s authorization before disturbing or removing anything.
Federal public and Indian lands
Historic shipwreck recovery on covered federal public or Indian lands is reviewed under the Archaeological Resources Protection Act and its implementing regulations, including 43 CFR Part 7, together with the managing agency’s own rules. Excavation or removal of archaeological resources on those lands requires an ARPA permit.
The federal land manager determines whether the wreck and proposed work fall within the statute, which application form is current, and what additional environmental, safety, tribal, or curation approvals are needed. Do not assume that a state permit transfers to federal waters or federal property.
National Marine Sanctuaries
NOAA’s National Marine Sanctuaries Act makes it illegal to disturb a sanctuary site or recover artifacts within a sanctuary without a permit. This can apply even when recreational diving is otherwise open.
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Sanctuary permits are considered for defined purposes such as research, resource protection, public education, or scientific understanding. An application that simply seeks souvenirs or commercial recovery is not equivalent to a documented archaeological project. Check the sanctuary’s current regulations and boundary map before planning a dive; a site can be inside a sanctuary without looking different underwater.
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The Department of the Navy has a separate permitting program for archaeological investigations and other activities directed at sunken military craft under Navy jurisdiction. The Navy generally leaves these wrecks in place and undisturbed.
A Navy research permit may authorize disturbance, removal, or injury when necessary for cultural-resource protection, scientific research, or public education. The Navy specifically lists diving or photographing a sunken military craft without disturbing the wreck site or associated artifacts as an activity that does not require that Navy permit. Other laws can still apply: a military wreck inside a sanctuary, for example, may also require sanctuary authorization.
The Naval History and Heritage Command’s current permitting information identifies more than 20,000 sunken ships and aircraft. That figure describes the scale of the Navy’s historical responsibility; it does not create a general right to recover material from any of those sites.
RMS Titanic
RMS Titanic is governed by a special federal authorization regime. Section 113 of the Consolidated Appropriations Act of 2017 provides that no person may conduct research, exploration, salvage, or another activity that would physically alter or disturb the wreck or wreck site unless authorized by the Secretary of Commerce under the U.S.-U.K. agreement.
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That rule is broader than a normal recreational-access analysis. A planned expedition cannot rely on an ordinary archaeological or salvage permission from another authority if the proposed work physically alters or disturbs Titanic.
Wrecks outside the public-ownership baseline
The Abandoned Shipwreck Act guidance concerns publicly owned wrecks. If a wreck is privately owned, not abandoned, or subject to a separate ownership claim, public access does not by itself grant a right to enter or remove property. Obtain the owner’s written permission and confirm the controlling government rules before treating the site as open for exploration.
Compare the main scenarios
| Planned activity or site | Likely authorization | Who to contact first |
|---|---|---|
| Photograph, measure, or record a publicly owned wreck without disturbance | May be permit-free, subject to closures and site rules | Managing agency or site office |
| Recover, excavate, move, or damage a state-owned abandoned wreck | State archaeological permit, license, or contract | State historic-preservation and underwater-archaeology offices |
| Excavate or remove archaeological resources on covered federal public or Indian lands | Archaeological Resources Protection Act permit and agency approvals | Federal land manager |
| Disturb a historic resource or recover an artifact in a national marine sanctuary | NOAA sanctuary permit | Sanctuary superintendent or NOAA permit program |
| Conduct archaeological work on a sunken U.S. military craft | Navy research or related permit when disturbance is proposed | Naval History and Heritage Command or the Navy office identified for the wreck |
| Physically alter or disturb RMS Titanic | Secretary of Commerce authorization under Section 113 and the U.S.-U.K. agreement | NOAA and the federal Titanic authorization process |
The table describes the principal pathway, not a guarantee that only one approval is needed. Location, ownership, environmental effects, protected species, occupational safety, export controls, and curation requirements can add separate permissions.
How to determine the right permit before you dive
- Write an activity description. State whether you will only observe and record, or whether you will touch, penetrate, excavate, lift, sample, conserve, or remove anything. Include tools, boats, anchors, remotely operated vehicles, and planned number of dives.
- Pin down the location. Use the most precise coordinates available and check state submerged-land boundaries, federal land boundaries, sanctuary boundaries, military-craft status, and any protected-wreck designation.
- Establish ownership and management. Ask which entity holds title or manages the cultural resource. Do not rely on a dive charter’s description, an old forum post, or a historical chart that predates a boundary change.
- Contact the authority before mobilizing. Send the activity description and coordinates to the state archaeology office, federal land manager, NOAA sanctuary office, Navy authority, or other identified manager. Ask which current application, permit, license, contract, or written determination applies.
- Request the complete conditions. Obtain rules on anchoring, penetration, artifact handling, photography, sampling, conservation, reporting, insurance, vessel operations, and seasonal or weather closures. Ask whether another agency’s approval is also required.
- Wait for written authorization. A phone conversation, informal email, or permission from a site volunteer is not a substitute for the document the controlling authority requires. Keep the permit, maps, and conditions with the project records and on the support vessel.
What a professional recovery application may require
State guidance summarized by the National Park Service recommends that a recovery permit, license, or contract include professional underwater-archaeology supervision. Agencies commonly expect a qualified archaeologist to design and direct the work rather than having divers make ad hoc collection decisions on the bottom.
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- Research design: the historical questions, significance of the wreck, objectives, methods, schedule, and team qualifications.
- Complete site documentation: accurate coordinates, baseline measurements, drawings or photogrammetry, condition assessments, and a record of the surrounding environment before disturbance.
- Artifact control: unique identifiers, provenience records, photographs, field logs, packing procedures, and a chain of custody for every recovered item.
- Conservation: a treatment plan suited to wet wood, iron, copper alloys, ceramics, glass, or other materials, plus a facility capable of stabilizing objects after recovery.
- Curation and public benefit: a long-term repository, access arrangements, interpretive or educational outcomes, and a plan preventing objects from disappearing into private collections.
- Reporting: interim and final technical reports, maps, artifact catalogs, conservation records, and delivery deadlines set by the permit.
- Other compliance: all additional state and federal permits, environmental reviews, tribal consultation, vessel or diving safety requirements, and sanctuary or military-craft conditions that apply.
Exact requirements vary by jurisdiction and project. Ask for the current application packet rather than adapting an old form or assuming that a permit from a neighboring state will be accepted.
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Common mistakes that turn a legal dive into an unauthorized recovery
Confusing public access with ownership
An open dive site allows an activity only within the limits established by its manager. Recreational access does not transfer title to artifacts or authorize collection.
Assuming an open sanctuary has no permit rules
Sanctuary access and sanctuary resource protection are separate questions. You may be allowed to swim over a wreck while artifact recovery remains prohibited without NOAA authorization.
Treating a military wreck as an ordinary abandoned wreck
Sunken military craft have their own federal protection and may also contain human remains or sensitive service records. Confirm Navy jurisdiction before planning any contact or removal.
Starting fieldwork while an application is pending
Photographing a site to prepare an application is different from beginning the proposed excavation. Do not test lifting equipment, move objects, or collect samples while waiting for approval unless the authority expressly authorizes those actions.
Leaving conservation until after recovery
Many marine artifacts deteriorate rapidly when removed from water. A recovery plan without an identified conservator, laboratory, funding, and repository can fail the permitting review and can permanently damage the evidence.
If you find an artifact unexpectedly
When an object appears during an otherwise nondestructive dive, leave it in place. Record its position, depth, orientation, and condition with photographs or notes if doing so does not disturb the site. Do not place it in a pocket, lift bag, or boat for safekeeping. Report the discovery to the wreck’s managing authority and ask for instructions; the agency can determine whether documentation, stabilization, or a permitted recovery is appropriate.
A practical pre-dive checklist
- Have you defined exactly what will and will not be touched?
- Do you know whether the wreck is state-owned, federal, Indian-land, sanctuary, military, Titanic-related, privately owned, or subject to another special designation?
- Have you confirmed the current boundary and manager in writing?
- Have you checked closures, no-entry orders, anchoring rules, penetration restrictions, and seasonal conditions?
- If recovery is proposed, is a qualified underwater archaeologist directing the work?
- Are documentation, conservation, curation, reporting, and all related permits included in the plan?
- Can the vessel and dive team show the authorization and follow every condition on site?
For a recreational diver, the safest legal baseline is simple: look, photograph, and record without touching or altering anything, and verify the site’s current rules before entering. Any plan to recover an artifact should begin with the wreck owner or managing agency and the applicable archaeological or sanctuary permit process.
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