((a)) ** Authority** The authority to promulgate regulations for the efficient enforcement of this chapter, except as otherwise provided in this section, is vested in the Commission.

((b)) ** Joint regulations** The Secretary of the Treasury and the Commission shall jointly prescribe regulations for the efficient enforcement of the provisions of , except as otherwise provided therein. Such regulations shall be promulgated in such manner and take effect at such time, after due notice, as the Commission shall determine.section 1273 of this title