The Board shall be composed of 12 members who shall be appointed as follows:
Except as provided in subsection (c), members of the Board shall serve for a term of 6 years.
If the Board determines, at the end of the 6-year period beginning on the date of the appointment of the last member appointed in accordance with subsection (a), that Mexico is not fully in compliance with its labor obligations, a majority of the members of the Board may determine to extend its term for 4 additional years. A new Board shall be appointed in accordance with subsection (a) and shall serve for a single term of 4 years.
19 U.S.C. § 4672