The NFPA has standards for some but not all of these stages.

WSJ: All Heat, No Light, in Fire Data

"Sports halls and indoor facilities are no replacement for playing fields on which young people can gain their first introduction to the world of sport, " said the NFPA's director, Elsa Davies.

BBC: Playing fields sell-out accusation

The NFPA says fire dispatchers should process calls in less than 60 seconds 90% of the time, and "we blow it out of the water, " says Trevor Richmond, commander of the LAFD's planning division.

WSJ: All Heat, No Light, in Fire Data