; (5) the contracting officer has included a justification for the use of a lowest price technically acceptable evaluation methodology in the contract file; and (6) the executive agency has determined that the lowest price reflects full life-cycle costs, including for operations and support. (c) Avoidance of use of lowest price technically acceptable source selection criteria in certain procurements To the maximum extent practicable, the use of lowest price technically acceptable source selection criteria shall be avoided in the case of a procurement that is predominately for the acquisition of— (1) information technology services, cybersecurity services, systems engineering and technical assistance services, advanced electronic testing, audit or audit readiness services, or other knowledge-based professional services; (2) personal protective equipment