Which EOC configuration allows personnel to function in the EOC with minimal preparation or startup time?

The EOC configuration that allows personnel to function in the EOC with minimal preparation or startup time is the Departmental EOC Structure.

In this configuration, the organization’s emergency manager or a senior official typically coordinates EOC efforts among the departments and agencies, leveraging existing relationships and processes to ensure a swift transition to emergency operations.

From the perspectives of EOC personnel, the Departmental EOC Structure is appreciated for its efficiency and the ease with which it allows teams to adapt to emergency situations, leveraging their day-to-day operational familiarity and minimizing the need for extensive additional training.

Source: https://training.fema.gov/emiweb/is/is700b/handouts/national_incident_management%20system_third%20edition_october_2017.pdf