Section 633.203 - Applicability(b) The Procurement Executive is the agency head for the purposes of FAR 33.203(b).(c) The Agency Board of Contract Appeals for the Department of State is the United States Civilian Board of Contract Appeals (CBCA). See http://www.cbca.gsa.gov.53 FR 26173, July 11, 1988, as amended at 80 FR 6922 , Feb. 9, 2015