2026 regulation year
Potomac River — mainstem (Chain Bridge to Cumberland) 2026 — Maryland Fishing Regulations
Maryland statewide rules apply unless overridden below.
Last updated
Potomac River — mainstem (Chain Bridge to Cumberland) carries a special-regulation overlay on top of Maryland's 2026 fishing rules — covering Walleye. Verify the agency booklet before launching: in-season changes are not yet wired to this page.
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Per-species rules on Potomac River — mainstem (Chain Bridge to Cumberland)
15 in min + 5 / day; 20 in MAXIMUM size Jan 1 – Apr 15 (release all walleye over 20 in during the pre-spawn period)
Official source
Maryland Department of Natural Resources (DNR) — Fisheries Service (Inland + Tidal) publishes the authoritative 2026 Maryland fishing regulations. Special-regulation lakes and rivers are listed in the agency booklet — always verify before fishing.
Visit official Maryland fishing regulations →
Emergency-order channel
In-season closures, slot-limit changes, and run-count-driven harvest pauses are posted to Maryland Department of Natural Resources's emergency-order feed — check it before any Maryland trip during the active season.
Other special-regulation waters in Maryland
- Allen's Fresh (Wicomico River, Charles County)
- Antietam Creek
- Atlantic Ocean
- Atlantic Ocean — Ocean City / Assateague
- Beaver Creek Fly-Fishing-Only Catch-and-Return Area
- Beaverdam Run
- Big Hunting Creek
- Casselman River Delayed Harvest Area
- Catoctin Creek Delayed Harvest Area at Doubs Meadow Park
- Chesapeake Bay
- Chesapeake Bay — lower Bay
- Chesapeake Bay — middle Bay
Frequently asked questions
- What special fishing regulations apply at Potomac River — mainstem (Chain Bridge to Cumberland)?
- Potomac River — mainstem (Chain Bridge to Cumberland) carries one special-regulation overlay that overrides Maryland's statewide 2026 rules, covering Walleye. It reads: "15 in min + 5 / day; 20 in MAXIMUM size Jan 1 – Apr 15 (release all walleye over 20 in during the pre-spawn period)." Every overlay on this water body is listed in full above.
- Do I need a fishing license to fish Potomac River — mainstem (Chain Bridge to Cumberland)?
- Yes. Potomac River — mainstem (Chain Bridge to Cumberland) is in Maryland, so a valid Maryland fishing license is required just as it is anywhere else in the state, issued by Maryland Department of Natural Resources (DNR) — Fisheries Service (Inland + Tidal). The special regulations on this page change the bag, size, slot, or gear rules for Potomac River mainstem; they do not waive the license requirement. Free-fishing days and youth exemptions follow the statewide Maryland rules.
- Do Potomac River — mainstem (Chain Bridge to Cumberland)'s special rules replace Maryland's statewide limits?
- Only where they conflict. Maryland's statewide 2026 regulations apply on Potomac River mainstem by default; the overlays above replace the matching statewide rule for the species or gear they name, while everything not specifically overridden still follows the statewide rule. When a water-body rule and the statewide rule disagree, the water-body rule wins.
- Which species have special rules on Potomac River mainstem?
- Walleye has a water-body-specific rule on Potomac River — mainstem (Chain Bridge to Cumberland), each linking to its full Maryland regulations above. Species not listed here follow the statewide Maryland limits.