In sci.electronics.repair, on Tue, 15 Nov 2016 16:03:30 -0800 (PST),
Central America is related to CAFTA. North America stops at the
Mexico-Guatemala border.
https://en.wikipedia.org/wiki/Dominican_Republic%E2%80%93Central_America_Free_Trade_Agreement
The agreement is a treaty under international law, but not under the
U.S. Constitution because in the United States laws require majority
approval in both houses, while treaties require two-thirds approval in
the Senate only. Under U.S. law, CAFTA-DR is a congressional-executive
agreement.
The U.S. Senate approved the CAFTA-DR on June 30, 2005, by a vote of
54-45,[2] and the U.S. House of Representatives approved the pact on
July 28, 2005, by a vote of 217-215, with two representatives not
voting.[3] Controversy arose over this vote because it was held open 1
hour and 45 minutes longer than the normal 15 minutes in order to get
some members to change their votes.[4] For procedural reasons, the
Senate took a second vote on CAFTA on July 28 and the pact garnered an
additional vote from Sen. Joe Lieberman —who had been absent on June 30—
in favor of the agreement.[5] The implementing legislation became Public
Law 109-053 when it was signed by President George W. Bush on August 2,
2005.
https://en.wikipedia.org/wiki/North_American_Free_Trade_Agreement
Following diplomatic negotiations dating back to 1990 among the three
nations, U.S. President George H. W. Bush, Canadian Prime Minister Brian
Mulroney and Mexican President Carlos Salinas, each responsible for
spearheading and promoting the agreement, ceremonially signed the
agreement in their respective capitals on December 17, 1992.[7] The
signed agreement then needed to be ratified by each nation's legislative
or parliamentary branch.