3. Assessment of the Plan
   
   

   The plan is judged to be successful if

4. 1. Individual animals are judged to be in a state of well-being or the cause of distress or atypical behavior in any animal can be shown to be derived from antecedent conditions or from an approved research protocol.
   2. When antecedent conditions apply, practices are identified and implemented for the benefit of future animals and facility records exist for the presence, etiology, and remediation or accommodation of observed cases of lack of well-being.

Plan 2 - A short version.

Species of nonhuman primates that have been observed to live in social groups in a free-ranging state are being socially housed in their primary enclosure

• In a manner similar to their natural social structure.
• In accord with generally accepted practices described in the literature for captive members of this species.

Each animal is maintained in a pair or group if it has been determined to be compatible with other animals by regular behavioral observations and approved by the attending veterinarian.

Animals that are individually housed are maintained in this manner because of overaggression, health status, or justified experimental constraints and with the approval of the institutional animal care and use committee and facility veterinarian.

Cage complexities (perches, toys, foraging devices, etc.) made available to socially and individually housed primates include the following:

• toys: Kong®, Plaque Attackers®, Tug-A-Toys®, Nyla-Rings®, solid vinyl rings and tugs, grooved vinyl dumbbells, flexible PVC tubing, and Boomer® balls.
• Food enrichment: Artificial fleece boards, artificial turf boards, puzzle feeders, PVC knots filled with banana pellets, shakers, fruity rawhides, and treats given by authorized personnel.
• Cage furniture: Perches and shelves.

Environmental enrichment is being given special consideration to (select the type(s) that apply):