147(2)
Except in cases where the delay involved may result in danger to life, rescue trained persons shall not proceed beyond any place where a base is to be established until there have been provided at such base,-
147(2)(i) two persons, of whom one shall be a qualified medical practitioner if practicable and other shall be a rescue trained person; (ii) a spare team with rescue apparatus, ready for immediate service; (iii) one or more reviving apparatus, oxygen revivers and like other apparatus, (iv) first aid box and stretcher;
147(2)(v) apparatus for testing of carbon monoxide; (vi) a hygrometer; and (vii) two flame safety lamps.