New Hampshire state waters, out to 3 miles
Head and tail must remain intact while on or leaving state waters.
NH F&G 2026 · checked · the official rulebook is the final word
Past 3 miles: federal waters Different rule
One fish per BOAT per trip, not per angler.
NOAA GARFO 2026 · checked 2026-09-20
Often mistaken for
Summer flounderLeft-facing, rounded tail, eye-spots. Tell them apart
Winter flounderSmall mouth, small fish. Tell them apartKeep the wrong fish and its rule applies.
How to tell it
Giant right-facing flatfish with a concave, crescent tail and a big toothy mouth. More on the Atlantic halibut page: every state’s rule, the records, and how anglers catch it.
Atlantic halibut in other states5 rulebooks
Questions anglers ask4
What is the size limit for Atlantic halibut in New Hampshire?
41 in TL min. Measured as total length: snout to the tip of the tail, tail lobes squeezed together.
How many Atlantic halibut can you keep in New Hampshire?
1 fish per trip/vessel.
When is Atlantic halibut season in New Hampshire?
Open year-round.
How current is this New Hampshire Atlantic halibut rule?
Source: NH F&G 2026, last checked Sep 10, 2026. A watchman re-reads the agency's pages nightly. Rules change mid-season by proclamation; the official rulebook is the final word.
In the appPoint the camera at an Atlantic halibut in New Hampshire and this rule is on the screen before you take the picture. No signal needed.
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