48 CFR §37.502

1. (a)This subpart does not apply to services that are
   1. (1)Obtained through personnel appointments and advisory committees;
   2. (2)Obtained through personal service contracts authorized by statute;
   3. (3)For construction as defined in 2.101; or
   4. (4)Obtained through interagency agreements where the work is being performed by in-house Federal employees.
2. (b)Services obtained under contracts below the simplified acquisition threshold and services incidental to supply contracts also are excluded from the requirements of this subpart. However, good management practices and contract administration techniques should be used regardless of the contracting method.