(1)This Act shall not apply to any premises to which it would, apart from this subsection, apply, if the period of time worked there during each week does not normally exceed twenty-one hours.
(2)For the purposes of this section the period of time worked in any premises shall be deemed to be—
(a)as regards a week in which one person only is employed to work in the premises, the period of time worked by him there;
(b)as regards a week in which two persons or more are so employed, the sum of the periods of time for which respectively those persons work there.
(3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F1
Textual Amendments
F1Ss. 3(3), 4(3), 6(5), 7(2), 8(2), 9(3)(4), 10(3)(4), 12(3), 20–22, 23(2), 25, 26, 27(3), 42(8)–(10), 43(6)–(8), 45, 46(12)(14), 49(2), 50, 54, 56–58, 61, 62, 65, 66, 68, 70(2)–(4), 71(1), 74(2)–(4), 75(2), 80(5)(6)(8), 81, Sch. 1 repealed by S.I. 1974/1943, reg. 4, Sch. 1
Modifications etc. (not altering text)
C1S. 3 extended by Radiological Protection Act 1970 (c. 46), s. 2(6)