Section 145(16) in The Coal Mines Regulations, 2017
(16)The sampling operations shall be carried out under the supervision of a competent person holding a manager's or overman's certificate or degree or diploma in mining or mining engineering from a university or institution approved for the purpose, who shall be designated as the "Sampling Incharge" and no other duties shall be entrusted to this person except with the previous permission in writing of the Regional Inspector.
