US ↔ Canada / Mexico Cross-Border Fishing Licensing 2026

Geographic scope

The Pacific Northwest border runs from the Strait of Juan de Fuca east along the 49th parallel through Boundary Bay, Lake Osoyoos, the Similkameen River, and a string of small lakes and streams in the Cascade and Selkirk ranges to the Idaho line.

Boundary waters

• Strait of Juan de Fuca (international saltwater — Vancouver Island BC / Olympic Peninsula WA)
• Boundary Bay (BC) / Drayton Harbor + Semiahmoo Bay (WA)
• Lake Osoyoos (49th-parallel boundary lake — BC and WA halves)
• Similkameen River (BC headwaters into north-central WA)
• Pend Oreille River (WA into BC as the Boundary Reach)
• Columbia River (BC headwaters into WA at the Pend d'Oreille / Columbia confluence)

How licensing works in practice

Country-of-residence licensing applies. Fishing the WA side of any boundary water requires a WDFW Combination / Freshwater / Saltwater licence (plus the WDFW Catch Record Card to retain salmon, steelhead, sturgeon, or Pacific halibut). Fishing the BC side requires either the DFO Tidal Waters Sport Fishing Licence (for marine waters) or the BC Freshwater Fishing Licence (for inland waters). The 49th parallel is the operative line — crossing it without the destination jurisdiction's licence is an enforcement matter for both BC Conservation Officers and WDFW.

Joint frameworks (not licensing)

• Pacific Salmon Treaty 1985 — Canada and the US jointly cap and allocate Chinook, Coho, Sockeye, Pink, Chum, and Steelhead harvest across the BC / WA / OR / SE Alaska range via the Pacific Salmon Commission. Affects season length and bag, but not licensing.
• International Pacific Halibut Commission — joint Canada / US sets the Pacific halibut quota and 2A (US west coast) / 2B (BC) area splits.
• Transboundary Rivers Panel — joint management of Stikine, Taku, and Alsek anadromous runs (Alaska / BC border — relevant to the broader cross-border salmon framework but not directly to the BC / WA reach).

Caveats & common misunderstandings

• Lake Osoyoos: the 49th parallel cuts the lake; an angler must hold a WA licence on the WA portion (the southern arm) and a BC licence on the BC portion (the northern arm). There is no day-permit that covers both halves.
• Salt water salmon and halibut on the Strait of Juan de Fuca: each side has independent season dates and slot limits — the Pacific Salmon Treaty drives the allocation, not the rule on the day. WA bag and Catch Record Card requirements apply south of the line; BC bag and Salmon Conservation Stamp requirements apply north of it.
• Crossing the border with caught fish triggers CBSA / CBP customs reporting — declare species, count, and whether the trip used a guide. Some species (sturgeon, certain rockfish) have additional cross-border export rules.
• Boats trailered across the border in either direction are inspection candidates for aquatic invasive species (zebra/quagga mussels, milfoil). Both BC and WA enforce mandatory inspection at primary land border crossings.

Geographic scope

The Great Lakes / boundary-waters border runs roughly 1,600 miles from Lake of the Woods east through Rainy Lake, the Boundary Waters Canoe Area Wilderness / Quetico Provincial Park canoe country, Lake Superior, the St. Marys River, Lake Huron, the St. Clair / Detroit Rivers, Lake Erie, the Niagara River, and Lake Ontario before continuing into NY / QC territory.

Boundary waters

• Lake of the Woods (MN / ON — also touches Manitoba)
• Rainy Lake + Namakan Lake + the Voyageurs National Park / Quetico chain
• Boundary Waters Canoe Area Wilderness (MN, USFS Superior NF) / Quetico Provincial Park (ON)
• Lake Superior — international waters under the joint Lake Superior management framework
• St. Marys River + Sault Ste. Marie rapids (MI / ON)
• Lake Huron + the St. Clair River + Lake St. Clair + the Detroit River (MI / ON)
• Lake Erie — Western, Central, and Eastern basins (MI / OH / PA / NY / ON)
• Niagara River + Lake Ontario (NY / ON — see also the NY ↔ QC pair for eastern Lake Ontario)

How licensing works in practice

Country-of-residence licensing applies. Fishing the US side of any boundary water requires the host state's licence (Minnesota DNR Angling Licence on MN waters; Michigan DNR Fishing Licence on MI waters; plus the Great Lakes endorsements where the state requires them — e.g., MI Trout, Salmon, Steelhead stamp). Fishing the ON side requires the Ontario Outdoors Card + Sport or Conservation Fishing Licence. The international line is the operative boundary — crossing it without the destination jurisdiction's licence is enforced by Ontario Conservation Officers, MN DNR Conservation Officers, MI DNR Conservation Officers, and the US Coast Guard / RCMP on open water.

Joint frameworks (not licensing)

• Great Lakes Fishery Commission — Canada / US joint commission that runs the sea lamprey control program and coordinates Lake Committee management plans (Salmon and Trout, Walleye, Lake Whitefish) across all five Great Lakes. Affects stocking and shared harvest tracking, not licensing.
• Lake of the Woods Control Board — Canada / US joint board that regulates Lake of the Woods water levels and outflows, with implications for walleye and northern pike spawning windows.
• Boundary Waters Treaty 1909 — frames the legal basis for the entire Canada / US boundary-waters relationship via the International Joint Commission.
• BWCAW + Quetico Provincial Park canoe-country interface — separate USFS and Ontario Parks permit systems for backcountry use; fishing licences are still required on top of the canoe-country entry permit, on the respective side.

Caveats & common misunderstandings

• BWCAW / Quetico canoe routes: paddlers crossing the international line on a multi-day trip need MN angling licence on the US lakes and an ON Outdoors Card + Sport Fishing Licence on the Canadian lakes — both can be bought online before the trip. Canoe-country anglers commonly assume the BWCAW entry permit covers fishing — it does not.
• Lake of the Woods: the lake is split between MN, MB (Manitoba), and ON. The northwest angle (the slice of MN that's only reachable by crossing into Canada) is a special case — anglers fishing the northwest-angle waters of MN still need the MN licence, not an ON one. Verify on the MN DNR map.
• Lake Erie walleye fishery: bag and slot limits on the US side (OH / MI / PA / NY) and the ON side are set independently each year by the Lake Erie Committee process, but enforcement is by each jurisdiction's officers — they will check the licence of the side you are physically fishing on.
• St. Marys River + Detroit River + Niagara River: connecting-channel anglers often anchor on or near the international line — the licence required is the licence of the side of the line your boat is physically on. Drifting across to the other side requires you to hold both, or to limit angling to your side.
• Crossing the border with caught fish triggers CBSA / CBP customs reporting. Most game fish are permitted with a daily limit declaration; some species (sturgeon, eel) carry additional Convention on International Trade in Endangered Species (CITES) rules.

Geographic scope

The NY / QC border is a short reach: the 45th parallel from the Vermont line at Lake Champlain's Missisquoi Bay corner west to the St. Lawrence River, then northwest through the Akwesasne Mohawk territory until the river enters Ontario waters above Cornwall. Lake Champlain proper is a NY / VT lake — the QC corner is a small slice at Missisquoi Bay (mostly VT / QC) which is covered separately below.

Boundary waters

• Lower St. Lawrence River — Akwesasne reach (NY / QC / ON tripoint near Cornwall)
• Lake Saint-François (the QC-side downstream impoundment of the St. Lawrence below the Moses-Saunders Dam)
• Boundary creeks and small ponds along the 45th-parallel reach east of the river
• (See the ME ↔ NB pair for boundary-water salmon and bass; see the ON ↔ MN/MI pair for upper Great Lakes; this entry covers only the immediate NY / QC reach.)

How licensing works in practice

Country-of-residence licensing applies. Fishing the NY side of the St. Lawrence requires a NY DEC Fishing Licence (and any St. Lawrence-specific permits). Fishing the QC side requires a Quebec Sport Fishing Licence from MELCCFP. The Akwesasne Mohawk territory (Saint Regis Mohawk Reservation on the US side; Akwesasne Mohawk Council on the Canadian side) administers its own member and non-member angling rules over its share of the river — non-member access on tribal waters is governed by the Akwesasne Mohawk Council and the Saint Regis Mohawk Tribe separately from NY and QC.

Joint frameworks (not licensing)

• International Joint Commission — administers Boundary Waters Treaty 1909 oversight of the St. Lawrence River reach.
• Lake Ontario Committee of the Great Lakes Fishery Commission — coordinates Lake Ontario / upper St. Lawrence salmon, trout, and walleye management across NY / ON / QC.
• Saint Regis Mohawk Tribe and Akwesasne Mohawk Council of the Mohawk Nation Council of Chiefs — joint tribal stewardship of the Akwesasne reach (the only US tribe whose territory crosses an international boundary, with land in NY, ON, and QC).

Caveats & common misunderstandings

• The NY DEC Fishing Licence covers NY waters of the St. Lawrence and Lake Ontario; it does NOT cover the QC or ON side, even where the river is a few hundred metres wide.
• The Quebec licence covers QC waters; for the Sépaq-administered controlled-zones (ZECs) within the watershed, an additional ZEC daily-rights fee applies.
• Akwesasne tribal waters: non-member anglers must consult the Saint Regis Mohawk Tribe Environment Division (US side) and the Akwesasne Mohawk Council (Canadian side) before fishing on tribal-administered reaches.
• Crossing the border with caught fish triggers CBSA / CBP customs reporting. The St. Lawrence American eel (CITES Appendix II) is subject to additional export controls — confirm with CBSA before transport.
• Lake Champlain VT / QC corner (Missisquoi Bay) is a separate case from this reach — Missisquoi Bay is mostly Vermont with a Quebec slice, and the Quebec slice requires a Quebec licence even though most anglers come from VT.

Geographic scope

The ME / NB border runs about 250 miles from Passamaquoddy Bay on the Atlantic upstream along the St. Croix River, through the St. Croix Flowage (East Grand Lake, North Lake, Spednic Lake), then across the height-of-land to the Saint John River watershed. The reciprocal-waters list is fixed by name in both the Maine DIFW Open Water Fishing Laws and the NB Anglers' Guide — only the named waters are reciprocal; everything else requires the host-jurisdiction licence.

Boundary waters

• St. Croix River (boundary river — main stem from Passamaquoddy Bay tide upstream to Vanceboro)
• East Grand Lake (boundary lake — ME / NB)
• North Lake (boundary lake — ME / NB)
• Spednic Lake (boundary lake — ME / NB)
• Mud Lake + Monument Brook + the smaller named impoundments on the St. Croix flowage
• Saint John River boundary reach (Madawaska County NB / Aroostook County ME — limited boundary status; verify in the current Anglers' Guide)

How licensing works in practice

On the named reciprocal boundary waters, a valid Maine OR New Brunswick fishing licence (resident or non-resident of either jurisdiction) is honoured by both sides. Off the named boundary waters — on tributary streams, tributary ponds, or any non-boundary water — the host-jurisdiction licence is required. Species-specific stamps (Atlantic salmon, in particular) are NOT covered by the boundary-waters reciprocity; an angler fishing for or retaining Atlantic salmon on either side needs the appropriate stamp from that side's agency. Customs reporting applies to fish carried across the border regardless of where they were caught.

Joint frameworks (not licensing)

• International St. Croix River Watershed Board (an International Joint Commission body) — coordinates St. Croix flowage water levels, fish passage, and the alewife restoration program at Milltown Dam.
• International Joint Commission Boundary Waters Treaty 1909 — frames the legal basis for the entire boundary.
• Atlantic Salmon Federation / Department of Fisheries and Oceans Canada — joint salmon recovery framework for the Saint John, Restigouche, Miramichi, and St. Croix Atlantic salmon stocks (NB-side); the Maine DIFW + USFWS Penobscot River Atlantic salmon recovery on the US side runs in parallel.

Caveats & common misunderstandings

• Reciprocity applies only to waters named in the current Maine DIFW Open Water Fishing Laws and the NB Anglers' Guide — both publications are updated annually. Verify the current named list before the trip.
• Atlantic salmon: the ME / NB boundary-waters reciprocity does NOT extend to Atlantic salmon. Atlantic salmon angling on the St. Croix and most NB rivers is catch-and-release only under current DFO and Maine DIFW rules, and requires the appropriate species licence on the side of the line the angler is fishing from.
• Tributaries: the reciprocity ends at the named-water boundary. Any tributary upstream or downstream reverts to the host-jurisdiction licence — even a few hundred metres above a flowage's high-water mark.
• Bag, possession, size, slot, and gear regulations follow the jurisdiction whose licence the angler is fishing under that day — they are not always identical between Maine and New Brunswick.
• Crossing the border with caught fish triggers CBSA / CBP customs reporting (species, count, jurisdiction of catch).
• The reciprocal arrangement is administrative, not statutory — either side can amend or withdraw via DIFW rule-making or DNRED regulation. Always confirm against the current year's Anglers' Guide and Maine Open Water Fishing Laws.

Geographic scope

The Texas / Mexico border is the Rio Grande from the New Mexico line at El Paso downstream past Big Bend National Park, through the Lower Pecos confluence, around the bend at Del Rio (Amistad), past Eagle Pass, Laredo, Falcon Dam, McAllen, and Brownsville to the Gulf of Mexico at the South Padre / Boca Chica mouth. Falcon Reservoir and Amistad Reservoir are both jointly administered by the International Boundary and Water Commission (IBWC / Comisión Internacional de Límites y Aguas).

Boundary waters

• Falcon International Reservoir (Starr County TX / Tamaulipas MX — 83,654 surface-acre Rio Grande impoundment behind Falcon Dam, completed 1953)
• Amistad International Reservoir (Val Verde County TX / Coahuila MX — 64,900 surface-acre Rio Grande impoundment behind Amistad Dam, completed 1969; Amistad National Recreation Area covers the US side under NPS administration)
• Rio Grande main stem (1,254-mile international boundary — TX / Chihuahua MX in the upper reach, TX / Coahuila + Nuevo León + Tamaulipas MX in the lower reach)
• Lower Pecos River + Devils River confluences (Amistad headwater tributaries — US-side tributaries are TX freshwater, not international)
• Big Bend National Park / Big Bend Ranch State Park / Black Gap WMA reaches (US-side park and WMA overlays on the upper Rio Grande boundary reach)

How licensing works in practice

Country-of-residence licensing applies. Fishing the Texas side requires a TPWD Freshwater Fishing Licence (or the Combination, Year-from-purchase, or All-Water variants) — the standard Texas resident / non-resident fee schedule applies. Fishing the Mexican side requires a CONAPESCA Mexican Federal Sport Fishing Permit — buy online or at a marina before launching. On Falcon and Amistad, the international line is buoyed in places and confirmed by GPS — boats crossing the line are subject to enforcement by either Texas Game Wardens (US side), Mexican PROFEPA / SEMAR officers (Mexican side), or the US Coast Guard / Border Patrol on the open reservoir.

Joint frameworks (not licensing)

• International Boundary and Water Commission (IBWC) / Comisión Internacional de Límites y Aguas (CILA) — joint US / Mexico commission that administers Falcon Dam, Amistad Dam, and the Rio Grande boundary water-allocation treaty (1944 Water Treaty); does NOT administer fishing licences.
• Texas Parks and Wildlife Department (TPWD) — US-side fisheries management for Falcon, Amistad, and the Texas reach of the Rio Grande; Inland Fisheries Division stocks Florida-strain largemouth bass and aggressive ShareLunker brood program on Falcon historically.
• Comisión Nacional de Acuacultura y Pesca (CONAPESCA) — Mexican federal sport-fishing licensing authority; INAPESCA (Instituto Nacional de Pesca) handles the biological framework.
• Amistad National Recreation Area (NPS) — federal park overlay on the US side of Amistad; requires NPS day-use or annual pass on top of the TPWD licence for boat-ramp access.

Caveats & common misunderstandings

• Falcon and Amistad both have buoyed international lines mid-reservoir. Crossing into Mexican water without a CONAPESCA permit — even briefly while chasing a school — is an enforcement matter for Mexican authorities and can result in vessel seizure.
• Mexican Sport Fishing Permits are issued for the angler, not the boat — every person on the boat fishing in Mexican waters needs their own permit.
• Bringing fish across the border at the McAllen / Laredo / Eagle Pass / Del Rio / El Paso ports of entry triggers CBP reporting — black bass and striped bass have CBP-specific declaration rules; declare species and count.
• Big Bend National Park reach: the US side of the upper Rio Grande is in Big Bend NP, which has its own fishing rules in addition to TPWD (artificial lures encouraged, certain protected reaches). The Mexican side here is Maderas del Carmen and Cañon de Santa Elena protected areas — sport fishing in the Mexican protected areas is heavily restricted; consult the protected-area authority before fishing the Mexican bank.
• Lower Rio Grande / Boca Chica: where the river meets the Gulf, the international line continues out into the Gulf as a maritime boundary. Saltwater anglers fishing the mouth need to confirm which side of the international line they are on; the TPWD Saltwater Stamp covers Texas inshore / offshore but not Mexican waters.
• Falcon and Amistad water levels fluctuate dramatically with the 1944 Water Treaty allocation — low-water years can expose old fence lines, brush, and inundated roads, changing the productive cover. The CONAPESCA permit and TPWD licence are valid regardless of water level, but boat-ramp access on either side can close during severe drawdown.