To limit the probability that inappropriate criteria will be stated for the testing of materials or assemblies with respect to spread of flame, which could lead to the use of inappropriate materials or assemblies, which could lead to the materials or assemblies contributing to the spread of fire, which could lead to damage to the building.
To limit the probability that inappropriate criteria will be stated for the testing of materials or assemblies with respect to smoke generation, which could lead to the use of inappropriate materials or assemblies, which could lead to the generation of an inappropriate amount of smoke from the materials or assemblies when subjected to fire conditions, which could lead to damage to the building.