Subject to the provisions of subsections (b) and (c) of this section, the President may authorize the entry into force of bilateral commercial agreements providing nondiscriminatory treatment to the products of countries heretofore denied such treatment whenever he determines that such agreements with such countries will promote the purposes of this chapter and are in the national interest.
An agreement referred to in subsection (a), and a proclamation referred to in section 2434(a) of this title implementing such agreement, shall take effect only if a joint resolution described in section 2191(b)(3) of this title that approves of the agreement referred to in subsection (a) is enacted into law.