For purposes of this part:
(a) Commission means the Postal Regulatory Commission.
(b) Individual, record, and system of records have the meanings specified in 5 U.S.C. 552a(a).
(c) Day means a calendar day and does not include Saturdays, Sundays, and legal holidays. [64 FR 57982, Oct. 28, 1999, as amended at 72 FR 33165, June 15, 2007]