It would remain operationally effective due to their proximity to air refueling missions.

In February 1990, the Avenger system was deemed operationally effective and began replacing the M163 and M167 VADS.

Congress expected the independent operational test agency in each service to test and evaluate a system relative to two questions: Is the system operationally effective?

It added that the fact that other military contracting laws were ignored means the Boeing tankers "may not be operationally effective, suitable and survivable."

With the passing of Law no. 10, 2009, issued on February 25, 2009, the EFSA was established and became operationally effective on July 1, 2009.

As a result, that Pentagon evaluation said the V-22 was suited only for low- and medium-threat environments, and is not "operationally effective" in high-threat environments.

In December 2011, Operational Test and Evaluation concluded that the EA-18G software was "operationally effective and suitable".

The Growler was rated operationally effective and suitable for operational use.

"Now the committee has recommended both a blueprint and a timetable for developing a cost-effective and operationally effective defense."

The alternative route was chosen on three criteria: that it should be environmentally acceptable, operationally effective and financially viable.