Signal 18 Police Code Meaning & Definition
What Does Signal 18 Mean?
Signal 18 is a police radio code most commonly used to mean Tree Down.
Police departments and dispatch centers may use Signal 18 differently, but Tree Down is the most common meaning found in our database of agencies across the United States.
Most Common Meaning: Tree Down
Used this way by: 50% of agencies on this page
Used in: 2 agencies across 2 states
Category: Non-Crime
Consensus: MediumMost agencies use this code similarly, but some regional or agency variations exist.
Code Distribution Breakdown
Tree Down: 50% (1 agency)
Injured Person: 50% (1 agency)
Signal 18 Police Code Meanings by Agency
2 agencies across 2 states
Why Does Signal 18 Have Different Meanings?
Police radio codes are not standardized nationwide. Different agencies may assign different meanings to Signal 18 , which is why multiple definitions can exist for the same code.
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