working party

plural working parties

1. UKA committee or group appointed to study and report on a particular question and make recommendations based on its findings.
2. A group of people working together on a particular project or subject.

   This outline programme was compiled by a working party consisting of members from the Regional Planning Office, the civil, mechanical and electrical, and signal engineering departments and the traffic services, on the basis of much groundwork done within each of these departments.

   1961 December, “Planning the London Midland main-line electrification”, in Trains Illustrated, page 720