"maintain effective" is a correct and usable phrase in written English.
You can use it in a variety of contexts to refer to staying effective or continuing to do something effectively. For example, "The organization must maintain effective communication with its customers."
In effect, this would require Washington to promise that Kurds would maintain effective control of the area they now rule.
IT needs to procure, implement and support a solution that fits within the organisation's overall information architecture to maintain effective information governance.
In the case of Capital One's auto-lending business, according to the S.E.C., the bank "materially understated" its loan loss expenses and "failed to maintain effective internal controls".
Sixth, expand our options by strengthening relationships with nearby governments, while ensuring that our plans for naval deployments maintain effective cruise missile and aircraft carrier strike capabilities.
"We did not maintain effective controls to provide reasonable assurance that accounts were complete and accurate," Groupon said in its annual report, which was released on Friday.
The dean of Broadway showmen, Abbott was known for his skillful use of material, his mastery of pacing and humour, and his ability to maintain effective action onstage.
The lessons of the Great Depression and John Maynard Keynes seem to have been forgotten: when private-sector spending on consumption and investment falls, public-sector spending must be increased to maintain effective demand and prevent unemployment.
"In today's environment of increased scrutiny of corporate conduct and increasingly large expenditures for prescription drugs," Ms. Rehnquist said, "it is imperative for pharmaceutical manufacturers to establish and maintain effective compliance programs".
Having talked so persuasively of the need for disarmament, he then detailed the future shape of Britain's nuclear arsenal, telling his audience that "we are committed to retaining the minimum force necessary to maintain effective deterrence.
Since the law already required companies to maintain effective controls — and had done so since 1977 — it seemed unlikely that would increase costs much for any company that was already in compliance.
Practically, a well-designed alarm system is an essential tool in to maintain effective plant operations.
