(1) Subject to subsection (2) of this section, no woman shall be employed on underground work in any mine.
(2) Subsection (1) of this section shall not apply to-
(a) women holding positions of management who do not perform manual labour; or
(b) women employed in health and welfare services; or
(c) women who in course of their studies spend a period of training in underground parts of a mine; or
(d) any other women who may occasionally have to enter the underground parts of a mine for the purposes of a non-manual occupation.
Section 56 of the Labour Act in Nigeria