; and (B) be randomly inspected at least monthly. (4) Category 4 food facilities A category 4 food facility shall be randomly inspected at least quarterly. (5) Category 5 food facilities A category 5 food facility shall be randomly inspected at least annually. (c) Establishment of inspection procedures The Administrator shall establish procedures under which inspectors or safety officers inspect food facilities, which shall allow the taking of random samples, photographs, and copies of records in food facilities. (d) Alternative inspection frequencies With respect to a category 2, 3, 4, or 5 food facility, the Administrator may establish alternative increased or decreased inspection frequencies for subcategories of food facilities or for individual facilities, to foster risk-based allocation of resources, subject to the following criteria and procedures: (1) Subcategories of food facilities and their alternative inspection frequencies shall be defined by regulation, subject to paragraphs (2) and (3). (2) Alternative inspection frequencies for subcategories of food facilities under paragraph (1) and for a specific food facility under paragraph (4) shall provide that— (A) category 2 food facilities shall be inspected at least monthly; and (B) category 3 and 4 food facilities shall be inspected at least annually. (3) In defining subcategories of food facilities and their alternative inspection frequencies under paragraphs (1) and (2), the Administrator shall consider— (A) the nature of the foods being processed, stored, or transported; (B) the manner in which foods are processed, stored, or transported; (C) the inherent likelihood that the foods will contribute to the risk of foodborne illness; (D) the best available evidence concerning reported illnesses associated with the foods produced in the proposed subcategory of facilities