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Pursuant to a congressional request, GAO reviewed the Federal Aviation Administration's (FAA) installation of automated weather observing systems (AWOS) at commercial and general aviation airports, focusing on: (1) the performance of automated weather sensors in making weather observations in various FAA tests and demonstrations; and (2) the cost-effectiveness of installing automated systems at commercial airports that already have weather observers.

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Recommendations for Executive Action

Agency Affected Recommendation Status
Department of Transportation 1. The Secretary of Transportation should not request funds for installing AWOS at commercial airports until the system meets FAA operational requirements for weather observations and is more cost-effective than the present weather observer system.
Closed - Implemented
When we confirm what actions the agency has taken in response to this recommendation, we will provide updated information.

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