The EPA is closing a program that drew complaints from environmentalists for cutting back on company inspections and regulations as a reward for voluntary controls on pollution.
The program enrolled hundreds of corporations in its "green club" if they agreed to undertake initiatives to save energy and reduce pollution. However, investigations of the program questioned its effectiveness.
The agency says it will refine the program to develop a stronger system to protect human health and the environment.
In a report issued in 2007, the EPA's inspector general found that under-performing facilities in the program reduced its integrity and value.
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