A CAZ (green) and a RAZ (red) for a simple farm site, comprised of only one barn and/or range and limited outbuildings. A CAP (yellow) provides access to each zone, and parking outside of the CAZ limits the volume and frequency of traffic movement. A transition area at the front of the barn allows room for people who work on the premises to perform boot and clothing changes, hand washing, and other personal duties. Egg pickup personnel can access the egg storage room (pink) via an anteroom or through a separate exterior door.