39-1603. POWERS AND DUTIES OF BOARD. The board of health and welfare shall promulgate rules governing: (1) The establishment and control of sanitation standards for food establishments; (2) The issuance, suspension and revocation of licenses; (3) The review of plans and specifications prior to construction or alteration of food establishments; (4) The procedure and scope of inspections to determine compliance with the standards and rules adopted under this chapter; (5) The criteria for the examination, embargo and destruction of food in compliance with section 37-118, Idaho Code; and (6) The establishment of a grading system for food establishments to be used at local option.