Code 3
Routine response – No urgency.
10-4
Acknowledgment (message received).
ETA
Estimated Time of Arrival.
BOLO
Be On the Lookout (used for identifying vehicles, individuals, or other persons of interest).
Request backup
Call for additional units.
Affirmative
Yes or confirmation.
Negative
No or denial.
Affirmative
Yes, confirmation.
Negative
No, or the situation is not as reported.
ETA
Estimated Time of Arrival.