Dubuque, Iowa (KWWL / NBC News Channel) -- The holiday known for costumes, tricks and treats will be missing one of those elements from an Iowa annual parade this year.
Participants of the Halloween parade in Dubuque won't be throwing out candy this year.
City officials say that long standing tradition has become a liability.
The police department, and the event organizers, agree, saying it's a public safety issue.
They say kids running from the sidewalk or the curb towards moving floats and vehicles are endangering themselves.
But that's not all. The event has grown so much, crowd control is now more difficult.
Other parents are concerned about food allergies.
Those who break the rule *no candy* rule will be told to leave.