(1)All types of steel supports, powered supports, chock shields, roof bolts, cement, resin grouts or any other material used as grout along with the rock bolt to be used for the purpose of supporting roof and sides of working in a mint, shall be of such type, standard and make as approved by the Chief Inspector.(2)The approval standard, test procedures and protocol for such supports shall be framed and notified by the Chief Inspector from time to time.
