50 CFR § 622.382 - Bag and possession limits.
Section 622.11(a) provides the general applicability for bag and possession limits.
(a) King mackerel and Spanish mackerel -
(1) Bag limits.
(i) Atlantic migratory group king mackerel -
(B) Off Florida - 2, which is the daily bag limit specified by Florida for its waters (Rule 68B-12.004(1), Florida Administrative Code, in effect as of July 15, 1996 (incorporated by reference, see § 622.413). If Florida changes its limit, the bag limit specified in this paragraph (a)(1)(i)(B) will be changed to conform to Florida's limit, provided such limit does not exceed 5.
(ii) Gulf migratory group king mackerel - 3.
(iii) Atlantic migratory group Spanish mackerel - 15.
(iv) Gulf migratory group Spanish mackerel - 15.
(v) Coastal migratory pelagic fish within certain South Atlantic SMZs - § 622.11(a) notwithstanding, all harvest and possession of coastal migratory pelagic fish within the South Atlantic SMZs specified in § 622.182(a)(1)(i) through (xi), (a)(1)(xx), and (a)(1)(xxii) through (xxxix) is limited to the bag limits specified in paragraphs (a)(1)(i) through (iv) of this section.
(2) Possession limits. A person who is on a trip that spans more than 24 hours may possess no more than two daily bag limits, provided such trip is on a vessel that is operating as a charter vessel or headboat, the vessel has two licensed operators aboard, and each passenger is issued and has in possession a receipt issued on behalf of the vessel that verifies the length of the trip.