The namespace import component of the Embedded Event Manager (EEM) policy is optional and contains code libraries. An EEM policy can be written as an applet in the commandline interface (CLI) or in Tool Command Language (Tcl). EEM policies contain instructions on what action should take place if a defined event occurs. An EEM policy can consist of the following six components:
- Event register keyword
- Environmental must defines
- Namespace import
- Entry status
- Body
- Exit status

The event register keyword and the body are both required components of an EEM policy? the remaining four components are all optional. The event register keyword describes, registers, and schedules the event that is to be detected by the policy. The body contains the instructions regarding the actions to be carried out.

The environmental must defines component determines whether required environmental variables have been defined before recovery actions are taken. The entry status determines whether another policy has been previously run for the defined event. The exit status determines whether the default action will be performed.