The Party Planning Committee is called upon to organize office events, sometimes on very short notice. The Committee's chair is Angela Martin. Regular members include Pam and Phyllis. Meredith is frequently a member as well.
In The Alliance, the Party Planning Committee (Angela, Pam, and Phyllis) plan Meredith's surprise birthday party.
The Party Planning Committee plans is credited for planning Michael's Birthday party, although we do not see them.
In Conflict Resolution, it is revealed that Phyllis tried to get off the Party Planning Committee.
In A Benihana Christmas, the Party Planning Committee (Angela, Pam, Phyllis, Meredith, and new member Karen) plan the office Christmas party. Pam and Karen break off from the Party Planning Committee to plan their own competing party.
In Back From Vacation, the Party Planning Committee (Angela, Pam, Phyllis, Meredith, and Karen) are ordered to throw a luau-themed party with only three hours' notice.