; and (2) in section 1116B(c), by striking has the meaning given such term in section 1821(d) of this title and inserting means a chemical in a herbicide used in support of United States and allied military operations in or near the Korean demilitarized zone, as determined by the Secretary in consultation with the Secretary of Defense, during the period beginning on September 1, 1967, and ending on August 31, 1971 .