Spearfishing Laws in New Hampshire: What You Need to Know Before You Dive
July 21, 2026
New Hampshire may have just 18 miles of Atlantic coastline, but its coastal and estuarine waters offer real opportunities for spearfishers willing to learn the rules. The state allows saltwater spearfishing under specific conditions — but the same cannot be said for its freshwater lakes and rivers, where spears are explicitly prohibited by law.
Whether you’re a resident planning a dive off the Seacoast or a visitor passing through from another New England state, understanding New Hampshire’s spearfishing regulations is non-negotiable. Violations can cost you your gear, your license, and potentially much more. This guide walks through every layer of the law so you can hit the water with confidence.
Is Spearfishing Legal in New Hampshire?
Yes — spearfishing is legal in New Hampshire, but only in saltwater. New Hampshire explicitly lists species rules that apply to both recreational anglers and spearfishers while fishing in state waters. This means the state formally recognizes spearfishing as a permitted method of take in coastal and estuarine environments.
The picture changes entirely once you cross into freshwater. Under New Hampshire law, it is unlawful to use or have in possession poisons, explosives, nets, set lines, fishing otters, trawls, grapples, spears, jacks, jack lights, or electrical or other devices for killing or stunning fish, except as otherwise specifically permitted. That blanket prohibition on spears in freshwater is found in the state’s freshwater fishing rules and leaves no room for interpretation.
The bottom line: if you want to spearfish legally in New Hampshire, you must be in tidal or coastal waters. Attempting the same activity in a lake, pond, river, or stream is a violation of state law regardless of the species you’re targeting.
Pro Tip: New Hampshire state waters extend 3 miles from the coastline. Beyond that boundary, federal jurisdiction applies and you’ll need to contact NOAA Fisheries for applicable rules before diving.
Freshwater vs. Saltwater Spearfishing Rules in New Hampshire
The divide between freshwater and saltwater spearfishing in New Hampshire is sharp, and it matters enormously for how you plan any dive trip. Spearfishing in freshwater bodies is regulated differently than in marine waters, with specific species being off-limits to ensure their populations remain healthy. In practice, “differently” means freshwater spearfishing simply isn’t allowed at all.
New Hampshire has 12,000 miles of rivers and streams, 975 lakes and ponds, and 140 Fish and Game boat launch sites. Despite that abundance of inland water, every one of those bodies is off-limits to spearfishing. The prohibition applies statewide, regardless of whether the water is publicly or privately owned.
In saltwater, the framework shifts. The Marine Fisheries Division of the NH Fish and Game Department was established by RSA 211:65 and is responsible for the regulation and promotion of both recreational and commercial marine fishing in the salt waters of the state, which include all waters within 3 miles of the coastline. Within those 3 miles, spearfishing is a recognized and regulated activity.
Estuarine waters — tidal zones such as Great Bay, Little Bay, and the mouths of rivers like the Lamprey and Piscataqua — fall under the saltwater licensing framework. “Coastal and estuarine waters” means all waters within the rise and fall of the tide, and water below any fishway or dam which is normally the dividing line between tide water and fresh water. If you’re spearfishing in a tidal stretch of a river, you’re in saltwater territory and need the appropriate license.
| Water Type | Spearfishing Allowed? | License Required | Governing Authority |
|---|---|---|---|
| Saltwater (within 3 miles) | Yes | NH Saltwater Recreational Fishing License | NH Fish and Game – Marine Fisheries Division |
| Estuarine / Tidal Waters | Yes | NH Saltwater Recreational Fishing License | NH Fish and Game – Marine Fisheries Division |
| Freshwater (lakes, ponds, rivers) | No – prohibited by law | N/A | NH Fish and Game – Freshwater Division |
| Federal Waters (beyond 3 miles) | Subject to federal rules | NH license + federal requirements | NOAA Fisheries |
License and Permit Requirements for Spearfishing in New Hampshire
Licensing is mandatory for all spearfishers in New Hampshire, and the rules are straightforward. All persons age 16 and older recreationally fishing in coastal and estuarine waters of the state must purchase a NH Saltwater Recreational Fishing License. This includes anglers, spearfishers, and persons using other gear types who wish to take, possess, or transport marine finfish for personal use and which are not sold.
The saltwater license costs $11 (including a $1 agent fee) for individuals. That fee applies to both residents and non-residents. New Hampshire residents can buy a 1-day freshwater fishing license for $10 or an annual license for $45, while an annual saltwater license costs just $11 for the same group.
There are a few important exemptions and special cases to know:
- Children under 16: Children under 16 always fish for free.
- Charter boats: There is a separate license for charter and party boats. You are exempt from holding a NH Recreational Saltwater Fishing License as long as you are fishing on a licensed charter or party boat.
- Reciprocity with neighboring states: Your NH Recreational Saltwater Fishing License allows you to fish in NH coastal and estuarine waters, all Massachusetts coastal and estuarine waters, as well as the entire Maine coast.
- Out-of-state licenses: NH residents cannot fish in New Hampshire using a Massachusetts saltwater license or Maine saltwater license, registry, or endorsement. NH residents must have a New Hampshire Recreational Saltwater Fishing License to fish coastal or estuarine waters in New Hampshire.
Fishing licenses are valid from January 1 through December 31 each year and may be purchased online through the New Hampshire Fish and Game licensing system, from authorized license agents, or in person at Fish and Game Department headquarters in Concord and Fish and Game regional offices. The license must be carried on your person when fishing or hunting. For fishing licenses, a PDF or other fixed image of a valid license visible on a smartphone is sufficient to comply with the law, as long as a Conservation Officer can view the information and a photo ID can be presented.
Pro Tip: If you plan to spearfish in both tidal and any above-dam freshwater areas during the same trip, you’ll need both a saltwater and a freshwater license. Always check which side of the tidal boundary you’re operating on before you dive.
Legal Species and Prohibited Species for Spearfishing in New Hampshire
New Hampshire’s saltwater regulations cover a wide range of finfish species that spearfishers may legally target. The state’s saltwater regulations list species that have rules or laws applying to recreational anglers or spearfishers while fishing in state waters. Common legal targets along the Seacoast include striped bass, flounder, bluefish, Atlantic cod, haddock, and mackerel.
Striped bass (Morone saxatilis) is one of the most sought-after species for spearfishers in New Hampshire’s coastal waters. The New Hampshire Saltwater Fishing 2026 Digest highlights striped bass fishing along the coast and provides official saltwater fishing regulations. Size and bag limits for striped bass have been subject to recent adjustments — see the Bag Limits and Size Limits section below for current figures, and always verify the latest rules in the annual saltwater digest before diving.
Several species carry strict protections that effectively prohibit or severely restrict spearfishing for them:
- Atlantic salmon (Salmo salar) — listed as a federally protected species; take is prohibited.
- Atlantic wolffish (Anarhichas lupus) — a species of concern with strict harvest restrictions in federal and state waters.
- Atlantic halibut (Hippoglossus hippoglossus) — subject to strict federal management; recreational retention is extremely limited.
- Any freshwater species — all freshwater fish are off-limits to spearfishing by state law, regardless of species.
Additional regulations apply in federal waters for many species. If you have questions about fishing in federal waters, contact NOAA Fisheries at (978) 281-9315 or visit the NOAA Fisheries recreational fishing regulations by species page. This is especially relevant for spearfishers targeting groundfish like cod and haddock, which are subject to federal management plans.
Important Note: The saltwater species list and associated rules can change from season to season based on stock assessments. Always cross-reference the current NH Fish and Game saltwater digest at wildlife.nh.gov before each dive trip.
Gear Restrictions for Spearfishing in New Hampshire
New Hampshire does not publish a separate spearfishing gear code, but several statewide and species-specific rules apply directly to how you can legally take fish underwater. The most important restriction is the freshwater spear ban already covered — but additional rules govern what you can and cannot do in saltwater.
Wearing a dive flag is a legal requirement in many areas. This simple yet crucial piece of equipment alerts boaters to your presence, significantly reducing the risk of accidents. A standard red-and-white diver-down flag must be displayed at the surface whenever you are diving, and it must be visible from a reasonable distance.
In freshwater, gear restrictions go beyond the spear prohibition. The use of lead sinkers and jigs weighing 1 ounce or less, regardless of length, is prohibited in all fresh water. While this doesn’t directly affect spearfishers (who can’t legally operate in freshwater anyway), it underscores New Hampshire’s broader approach to protecting aquatic ecosystems from harmful equipment.
For saltwater spearfishers, the following gear principles apply:
- Spearguns and pole spears — permitted in saltwater for legal species.
- Scuba vs. freediving — New Hampshire does not explicitly ban scuba-assisted spearfishing in state regulations, but always confirm with NH Fish and Game before using scuba gear to take fish.
- Dive flag — required when diving; must be displayed at the surface.
- No gaffs in freshwater — the use of a gaff to take fish in any fresh waters of the state is prohibited.
- Snagging prohibited — snagging fish in freshwaters is prohibited, and any fish accidentally snagged must be immediately released to the water.
If you’re also comparing gear rules with other nearby states, the spearfishing laws in New Jersey and spearfishing laws in Virginia articles cover how those states handle similar equipment questions along the Atlantic coast.
Off-Limits Areas and No-Spearfishing Zones in New Hampshire
Even within saltwater, not every stretch of New Hampshire’s coast is open to spearfishing. Several categories of restricted zones can apply depending on where you’re planning to dive.
State waters include all waters within 3 miles of the coastline. The area between 3 and 200 miles of shore is under the jurisdiction of the federal government. Spearfishers operating beyond the 3-mile mark must comply with federal rules in addition to — or instead of — state rules, depending on the species involved.
Some waters carry unique or heightened protections due to sensitive habitats, spawning migrations, or restoration efforts. Headwater streams and designated wildlife reserves may impose stricter closures or gear restrictions. In coastal areas, this can include estuary conservation zones, marine protected areas, and spawning closures around river mouths during key migration periods.
Additional no-go zones for spearfishers include:
- All freshwater bodies statewide — lakes, ponds, rivers, and streams are off-limits by law.
- Areas above tidal dams — once you cross above a fishway or dam, you’re in freshwater jurisdiction and spearing is prohibited.
- State and federal marine sanctuaries — any designated sanctuary within or adjacent to NH waters carries its own restrictions on take.
- Spawning closures — the Connecticut River, a major fish migration route, has designated areas where fishing is prohibited during key spawning periods.
- Private property waters — access to tidal areas adjacent to private land may be restricted; always confirm access rights before entering the water.
Always check the water body-specific regulations provided by NH Fish and Game, which include current maps, seasonal calendars, and any temporary emergency measures. Rules can be updated mid-season in response to stock assessments or emergency conservation orders.
If you’re curious how other states in the region handle restricted zones, the spearfishing laws in Pennsylvania and spearfishing laws in Michigan guides provide useful comparisons for inland and coastal restricted-area frameworks.
Bag Limits and Size Limits for Spearfishing in New Hampshire
Bag limits and size limits in New Hampshire apply equally to spearfishers and rod-and-reel anglers. Minimum size limits prevent the harvest of undersized fish, while maximum or slot limits protect breeders. Daily bag limits cap how many fish an angler may keep in a 24-hour period. These limits are species-specific and can vary by water body and time of year.
Striped bass has been one of the most regulated species in recent years due to population concerns along the Atlantic coast. New Hampshire now uses the Atlantic coastwide standard measurement of striped bass: the straight-line distance from the tip of the snout to the tip of the tail (caudal fin) when the tail is squeezed to its maximum length while the fish is laying on its side. Always measure fish accurately before retaining them.
The table below summarizes key saltwater species limits relevant to spearfishers as reflected in the 2026 NH Saltwater Fishing Digest. Verify current figures at eRegulations.com before each trip, as rules can change mid-season.
| Species | Minimum Size | Daily Bag Limit | Notes |
|---|---|---|---|
| Striped Bass | 28 inches (slot/size rules apply) | 1 fish per day (within slot) | Subject to ongoing ASMFC management changes; verify current slot before diving |
| Summer Flounder (Fluke) | Check current digest | Check current digest | Size and bag limits set annually |
| Bluefish | No minimum | Check current digest | Federal bag limits may apply |
| Atlantic Cod | Check current digest | Check current digest | Subject to federal groundfish management |
| Atlantic Halibut | Federal rules apply | Extremely limited; check NOAA | Federally managed; retention very restricted |
| Atlantic Salmon | N/A | 0 — prohibited | Federally protected; no take allowed |
It is prohibited to continue to take or attempt to take fish after filling the daily bag limit for that species. Once you’ve reached your limit for any species, you must stop targeting that fish for the remainder of the day — even if you’re still in the water.
For a broader look at how neighboring states handle limits for similar species, see the spearfishing laws in Minnesota and spearfishing laws in Ohio guides, or compare Atlantic coast approaches in the spearfishing laws in Florida article.
Penalties for Spearfishing Violations in New Hampshire
New Hampshire takes fishing violations seriously, and the penalties scale with the severity of the offense. Violations of New Hampshire’s fishing laws can result in significant penalties. Under RSA 214:18, fishing without a valid license carries a fine of up to $93 for a first offense, with repeat violations leading to steeper penalties, including misdemeanor charges and fines exceeding $500.
Using prohibited gear — such as a spear in freshwater — falls into a more serious category. Infractions such as exceeding daily catch limits or using prohibited gear can result in harsher consequences. Under RSA 211:49, illegally taking or possessing fish beyond established limits can lead to fines of up to $1,000 per offense and possible confiscation of equipment.
More serious violations, such as fishing during closed seasons or harming protected species, can result in license revocation for up to one year. Poaching or large-scale illegal fishing operations may lead to criminal charges, including Class B misdemeanors, which carry potential jail time in addition to financial penalties.
Conviction for violation of any fishing law or rule, littering, or criminal trespass (RSA 214:19; 207:36-b; 635:2) may result in the revocation of your fishing license or privilege. That revocation can affect both your freshwater and saltwater licenses simultaneously.
Here’s a quick reference for common violation penalties:
- Fishing without a license (first offense): Fine up to $93 (RSA 214:18)
- Repeat license violations: Misdemeanor charges; fines exceeding $500
- Using prohibited gear / exceeding bag limits: Fines up to $1,000 per offense; equipment confiscation (RSA 211:49)
- Fishing during closed seasons or harming protected species: License revocation up to one year
- Poaching or large-scale violations: Class B misdemeanor; potential jail time
NH Fish and Game enforces fishing laws through periodic patrols and community reporting. Violations can result in fines, license suspensions, or mandatory restitution. It is advisable to carry proof of license and be prepared to present it to wardens on request.
The New Hampshire Operation Game Thief program encourages the public to report wildlife violations to help protect fish and wildlife resources. If you witness someone spearfishing illegally — including in freshwater — you can report it through this program.
Important Note: Penalty amounts cited here are based on RSA statutes as reported by legal sources. Fines may be adjusted by the courts and can increase with aggravating factors. Always consult the NH Fish and Game laws and rules page or a qualified attorney for the most current penalty schedules.
Staying compliant in New Hampshire is straightforward as long as you follow a few core principles: spearfish only in saltwater, carry your license, respect bag and size limits, and check the current saltwater digest before every trip. New Hampshire law is also relevant alongside other animal and wildlife regulations in the state — from duck hunting laws in New Hampshire to roadkill laws in New Hampshire — all of which reflect the state’s consistent approach to balancing recreational access with conservation. For spearfishers specifically, the spearfishing laws in Indiana guide offers a useful look at how a landlocked state handles the same activity, while the spearfishing laws in New Jersey article covers the closest comparable Atlantic coast framework to New Hampshire’s.