California Code of Regulations
Title 19 - Public Safety
Division 1 - State Fire Marshal
Chapter 10 - Explosives
Subchapter 4 - Use and Handling of Explosives
Article 9 - Explosives at Piers, Railway Stations and Cars or Vessels Not Otherwise Specified in these Rules and Regulations
Section 1571.5 - Fire Department Notification

When explosives are brought into any city, city and county, county, fire protection district, or the state, by any means of transportation, for delivery to an intermediate receiver, consignee's agent or consignee, or to be forwarded to some other destination, the carrier performing the shipment shall immediately notify the consignee and when required, the "Chief" having jurisdiction of the arrival of the explosives, and if said consignee does not receive and remove the said explosives from the possession of the carrier within 48-hours (Sundays and holidays excluded), after such notification, then the railway, trucking firm, vessel agent, or airline shall remove the said explosives from the city, city and county, county, fire protection district, or state or to a permitted magazine or make a report to the "Chief" having jurisdiction, who shall see that the said explosives are moved to a place of safety.