What is the minimum height requirement for a perimeter fence enclosing an outdoor area for nonhuman primates?

The minimum height requirement for a perimeter fence enclosing an outdoor area for nonhuman primates is set at six feet to ensure the safety and security of the animals. Nonhuman primates are known for their agility and climbing abilities, and a fence of this height provides a significant barrier to prevent escape. This requirement is designed to protect both the animals and the public, as it reduces the risk of the primates leaving the designated area. A fence shorter than six feet may not adequately contain these intelligent and highly capable animals, leading to potential safety hazards. Thus, the specification of six feet is a crucial standard in the regulations governing the care and housing of nonhuman primates.