Environmental auditing is an important activity in the proper development and maintenance of Integrated Environmental Management Systems (IEMS) within a company, thus monitoring the effectiveness of IEMS is based on the results of a complete environmental auditing, competent and with considerable environmental expertise.

Environmental auditing criteria can integrate thorough analyses of ISO policies, practices, procedures or requirements, and other specific environmental management system requirements, so the environmental auditor with the information base collected from the organisation’s analysis can issue a series of conclusions as support for the organisation.

The main objectives of an Environmental Audit are to conclude the proper functioning of the environmental management system implemented in a company, determining the degree of compliance with the environmental management provisions, while an environmental audit can provide the organisation’s management with the necessary information to improve environmental policies and practices.