The overall framework is directed to a facility. Thus, the preventive controls for human food rule establishes a requirement for every facility to have its own written food safety plan. Even if a corporation makes or holds similar products at separate facilities, it is unlikely that the separate facilities have exactly the same equipment and layout. Procedural instructions must be tailored to the equipment being used, and the layout of a facility including processing lines, technologies, and raw materials utilized as they will affect the approach to applying preventive controls such as allergen controls.