When submitting requests for The Rialto Fire Department to attend your event, please submit request at least 30 days prior to the event. If your event is in less than 30 days, please contact the Rialto Fire Department at (909) 820-2501 to check on availability. A submitted request form does not guarantee it has been approved. Someone from the Rialto Fire Department will provide an update on your request via e-mail. To request an event, select from the following options.