It is important for an enterprise to have a suitable environmental policy that allows a minimization of its negative impacts and makes powerful positive impacts.

A rigth environmental management can be transformed into a powerful marketing tool that will lend an economic proffit and at the same time an improval in relationships with the community.

The environmental management must be periodically audit and reviewed given enterprise`s changing realities for internal environmental management changing structures.

An environmental management manual it´s an inseparable part of an Environmental Impact Evaluation. it is not enaf with measuring the magnitude of the impacts and determinating the actions for their corrections; it is also necessary to provide a policy that makes posible the continous improval of the enterprise environmental behavior.