(1) For section 136C(2)(d) of the Act, the prescribed competencies for a class 2 licence are (a) the holding of an Australian well driller's licence that is, in terms of what it authorises, substantially equivalent to a class 2 licence; or(b) the successful completion of an approved course, or of national qualifications for a class 2 licence, and having passed the drillers licence examinations approved by the NUDLC and acquired basic field experience; or(c) the holding of a class 1 licence, or the holding of the necessary qualifications and experience that are approved by the NUDLC for the purposes of holding a class 1 licence and having acquired intermediate field experience.(2) In this regulation basic field experience , in relation to an applicant, means that the applicant has (a) experience in operating drilling machines in well-drilling operations (as an employee) over a period of at least six months; and(b) personally drilled, under the supervision of the holder of a class 2 licence, at least six class 2 wells or personally drilled, under the supervision of the holder of a class 2 licence, at least six class 1 wells and at least three class 2 wells;class 1 well means a well in a single non-flowing aquifer system;class 2 well means a well in a multiple non-flowing aquifer system where the system requires the separation of one aquifer from another;intermediate field experience , in relation to an applicant, means that the applicant has (a) experience in operating drilling machines in well-drilling operations (as an employee) over a period of at least 12 months; and(b) personally drilled at least six class 1 wells and, under the supervision of the holder of a class 2 licence, drilled at least three class 2 wells or, under the supervision of the holder of a class 2 licence, drilled at least six class 2 wells.