Federal rule (NOAA Highly Migratory Species) · New Hampshire lists none of its own
Size99" LJFL minLower-jaw fork length: tip of the lower jaw to the fork of the tail
BagNo federal bag limit; annual US 250-marlin landings cap (blue + white combined)
SeasonYear-roundOpen today
HMS permit required.
NOAA HMS 2026 · checked · the official rulebook is the final word
How to tell it
Cobalt back, lit-up bars, heavy bill; the one that dumps the spool. More on the blue marlin page: every state’s rule, the records, and how anglers catch it.
Questions anglers ask4
What is the size limit for blue marlin in New Hampshire?
99" LJFL min. Measured as lower-jaw fork length: tip of the lower jaw to the fork of the tail.
How many blue marlin can you keep in New Hampshire?
No federal bag limit; annual US 250-marlin landings cap (blue + white combined).
When is blue marlin season in New Hampshire?
Year-round.
How current is this New Hampshire blue marlin rule?
Source: NOAA HMS 2026, last checked Sep 20, 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 a blue marlin in New Hampshire and this rule is on the screen before you take the picture. No signal needed.
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