National Institute of Standards and Technology (NIST)
Explanation:
The National Institute of Standards and Technology (NIST) established in 1901, is the federal agency charged with the responsibility of creating information security standards and guidelines for use within the federal government and more broadly across industries.
Aversive conditioning is the use of something unpleasant to stop unwanted behavior. The client knows that outside the therapist's office, the food will not induce nausea.