(a) Except as otherwise authorized, and notwithstanding any contract entered into or any license or permit granted prior to the effective date, any transaction by a U.S. person or within the United States on or after the effective date that evades or avoids, has the purpose of evading or avoiding, or attempts to violate any of the prohibitions set forth in this part is prohibited.

(b) Except as otherwise authorized, and notwithstanding any contract entered into or any license or permit granted prior to the effective date, any conspiracy formed to violate the prohibitions set forth in this part is prohibited.