The approving authority may approve the use of time-only, rather than time in conjunction with temperature, for food protection as set forth in §B of this regulation. The person-in-charge shall ensure that: Before using time-only while holding or preparing a potentially hazardous food: A written request is submitted to and approved by the approving authority for a specific food under specific conditions of preparation and service that includes: A record-keeping procedure that can verify safety intervention steps; and Procedures for marking or otherwise identifying the food with the time by which it is to be either used or discarded; and The procedures for time-only are included in the food service facility's HACCP plan as a critical control point; Except as otherwise approved by the approving authority, the maximum time limit under time-only control is 4 hours for a: Raw, working supply of potentially hazardous food during preparation, after which time the food is cooked or discarded; and Ready-to-eat potentially hazardous food held for immediate consumption, after which time the food not served is discarded; Food has an initial temperature of: 41°F or less upon removal from refrigeration; or 135°F or more upon removal from cooking equipment; and Food that has been protected using time-only control is not served in a health care facility.