ISO14001 requires that an environmental management system is planned properly. It requires the organization to consider the following carefully: Environmental Aspects; Legal and Other Aspects; Objectives and Targets; and an Environmental Management Program.
The two requirements for implementation of an EMS is to define, document, and communicate roles, responsibilities and authorities, and to allocate the resources needed to implement and control the EMS.
The key requirement in this EMS step is to regularly monitor and measure key characteristics of activities and operations that could have a significant impact on the environment. Changes to EMS procedures may become necessary in order to deal with nonconformances with the EMS, with mitigating environmental impacts, or corrective and preventive action.
The management review process ensure that information is collected to enable management to carry out proper review. Top management review the need for changes to policy, objectives and targets, and ensure that a commitment to continual improvement is being demonstrated.