See Senior Agency Official for Privacy.
NIST SP 800-53A Rev. 5
The senior official, designated by the head of each agency, who has agency-wide responsibility for privacy, including implementation of privacy protections; compliance with Federal laws, regulations, and policies relating to privacy; management of privacy risks at the agency; and a central policy-making role in the agency’s development and evaluation of legislative, regulatory, and other policy proposals.
NISTIR 8062 under Senior Agency Official for Privacy