23. (1) Each warehouse approved and licensed under this Ordinance, shall have on its staff a person assigned by the Director, who is qualified, competent and licensed by the Director to act as weigher, sampler or grader of any agricultural produce stored or to be stored in such warehouse. (2) The Director shall grant licences to weighers, samplers and graders on such terms and conditions and on payment of such fees as may be prescribed. (3) The Director shall publish rules and regulations defining specifically the duties and responsibilities of licensed weighers, samplers and graders and shall assign them to a particular warehouse or area. (4) The agricultural produce to be stored in the warehouse may be graded and the warehouse-man shall provide facilities for such grading.