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Ohio Emergency Management Agency

ODPS Ohio Emergency Management Agency Emergency Management Assistance Compact (EMAC)

Emergency Management Assistance Compact (EMAC)



The Emergency Management Assistance Compact (EMAC) is a national interstate mutual aid agreement that enables states to share resources during times of disaster. EMAC has grown to become the nation's system for providing mutual aid through operational procedures and protocols that have been validated during disasters where assistance was provided under the compact.

EMAC acts as a complement to the national disaster response system, providing timely and cost-effective relief to states requesting assistance from compact members who understand the needs of jurisdictions that are struggling to preserve life, the economy, and the environment. EMAC does not replace federal assistance, but can be used when federal assistance is not warranted, thus providing a seamless flow of needed goods and services to an affected state. EMAC is another tool for mitigating resource deficiencies by ensuring the maximum use of all available resources within member states' inventories.

Requesting and deploying resources is made at the discretion of the affected state. At all times, affected states retain the choice of seeking resource support from other states, the federal government or both as may be determined by the size of the event.

How EMAC works:

  • Disaster occurs
  • The Governor of the affected state issues a disaster declaration
  • State Emergency Management Agency assesses needs
  • Resources are requested through the EMAC network
  • Assistance is provided by other states

Benefits to states:

  • Assistance may be more readily available
  • Legislation solves the problems of liability and responsibilities of cost
  • Legislation allows for credentials to be honored across state lines
  • Allows for quick response using the unique human resources and expertise possessed by member states

Intrastate mutual aid has repeatedly proven beneficial to the citizens of this state. Mutual aid is a key component of the Department of Homeland Security's National Strategy and the National Incident Management System (NIMS).


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