NFIRS Relational Edit Rule 53

Module : Fire

Block : E1

Field : Cause of Ignition

The NFIRS specification provides this definition for Relational Edit Rule 53 :

Rule : If Cause of Ignition = 3 or 4 (Failure of Equipment or Heat Source, Act of Nature), then Block E 2 (Factors Contributing) is required (none is valid answer).