Billfish Conservation Act of 2012 - Prohibits any person from offering billfish or billfish products for sale, selling them, or having custody, control, or possession of them for purposes of offering them for sale or selling them.
Treats a violation of this Act as an act prohibited by the Magnuson-Stevens Fishery Conservation and Management Act. Subjects a person to a maximum civil penalty of $100,000 for each violation, with each day of a continuing violation constituting a separate offense. Exempts the state of Hawaii and the Pacific Insular Area, except that billfish may be sold under such exemption only in the United States and the Pacific Insular Area.
Defines "billfish" as any of the following: (1) blue marlin, (2) striped marlin, (3) black marlin, (4) sailfish, (5) shortbill spearfish, (6) white marlin, (7) roundscale spearfish, (8) Mediterranean spearfish, or (9) longbill spearfish. Excludes swordfish from such definition.