“ Subject to subsection (b) of Section 1 above, the functions conferred by section 303 (d) to the extent that they involve the suspension of import restrictions.
(b) Subject to subsection (f) and (g) of Section 1 above, the functions conferred by section 304 to the extent that they involve the application of import restrictions set forth in section 307 and the extension of such import restrictions pursuant to section 304 (c) (3) .
Sec. 4. Enforcement in Territories and Other Areas. The Secretary of the Interior is designated to carry out the enforcement functions in section 314. ”