8In section 303 (meaning of “excluded activities”)—
(a)in subsection (1), after paragraph (i) insert—
“(ia)shipbuilding,
(ib)producing coal,
(ic)producing steel,”, and
(b)in subsection (2), after paragraph (d) insert—
“(da)section 307A (shipbuilding),
(db)section 307B (producing coal),
(dc)section 307C (producing steel),”.