Billfish Conservation Act of 2010 - Prohibits any person from offering billfish (except swordfish) or billfish products for sale, selling, importing, or exporting them, or having custody, control, or possession of them for purposes of offering them for sale, selling, importing, or exporting 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.
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.