If you have a fire alarm or hold-up alarm in Lancaster, you need to register it with the city.
It's part of a new ordinance that takes effect Monday, April 21, 2014.
City officials said most alarms turn out to be false, which can cost money and divert firefighters and police from 'real' emergencies.
Registration comes with a $25 fee.
After a 'fourth' false alarm, a person or business would have to begin reimbursing the city for expenses.