Mine Health and Safety Act 2004 No 74
Current version for 20 January 2013 to date (accessed 24 May 2013 at 18:10)

76   Hours of work and associated working arrangements below ground

(1)  Except in cases of emergency, a person other than an operator or a person acting in the management of the mine is not to be employed underground in a mine for more than 8 consecutive hours at any time or for more than 48 hours in a period of 7 consecutive days.
(2)  Except in cases of emergency, each person employed underground in a mine is to have at least one full day of 24 consecutive hours off work in each period of 7 consecutive days.
(3)  The regulations may prescribe circumstances where some or all of the requirements of subsections (1) and (2) do not apply.
(4)  Except in cases of emergency or in the circumstances prescribed by the regulations, a person other than an operator or a person acting in the management of a mine must not be employed at the mine for more than 8 consecutive hours at any time:
(a)  in a shaft, except in a cage, or
(b)  in any situation in which there is a danger of falling down a shaft, such as at work in close proximity to an unguarded shaft.
(5)  In this section, shaft does not include a pit except in circumstances in which the regulations provide that it is to include a pit.
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