interagency

[ in-ter-ey-juh n-see, in- ]

/ ˌɪn tərˈeɪ dʒən si, ˈɪn- /

made up of, involving, or representing two or more government agencies: interagency cooperation.

Origin of interagency

First recorded in 1965–70; inter- + agency

Other interagency partners included the FBI and the Army Criminal Investigation Command.

Journalism On Trial as Bradley Manning Case Nears Moment of Truth |Alexa O'Brien |July 16, 2013 |DAILY BEAST
At one point last year they appeared to have prevailed in the interagency wrangling.

Obama: I Make the Drone Decisions |Daniel Klaidman |May 23, 2013 |DAILY BEAST
Interagency coordination and cooperation must be raised to a new level of sophistication.

Shock and Awe |Harlan K. Ullman
An interagency task force has just reported to me on a series of measures we need to take to increase coal production and exports.

Complete State of the Union Addresses from 1790 to 2006 |Various