Which SEMS level in California includes six mutual aid regions?

• A. Regional level
• B. Field level
• C. Local level
• D. State level

Answer: (A)

In SEMS, coordination scales up from local jurisdictions to broader areas to share resources and information efficiently. The regional level sits between local field operations and the state level, organizing multiple counties within a defined geographic region so they can coordinate mutual aid, standardize procedures, and deploy regional support when incidents cross jurisdictional lines. California specifically defines six mutual aid regions at this level, making regional coordination the layer that brings together multiple agencies across a larger area to respond together. Local level focuses on a single jurisdiction, field level handles on-scene operational coordination, and the state level oversees statewide policy and resource management.