It is important to maintain safe facilities. The GMPs for facilities could be grouped in many ways, but one way to consider them might be: Inside, Outside, Pest Management and Sanitation.
GMPs listed for the plant and grounds help ensure that the building and structures are suitable for food production and reduce the potential for pathogen contamination. For example, make sure that the grounds outside the food facility are clean, with no standing water and that waste is collected and removed on a regular schedule. Inside the facility, provide adequate space and proper separation of operations.