JayBo,
Double check your facts, don't take previous post answers as gospel.
GAMA type charts (US GA aircraft/FAA AFM) and similar are generally NOT factored, that is why the regs. exist, to add the safety margins for other than private operations, that were in "DCA" charts ( Australian Flight Manual) prior to 1998.
FAR 25 aircraft are a different kettle of fish, surprise, surprise, the certification factors for all performance can be found in FAR 25 and associated Advisory Circulars. Probably of limited relevance now (any 748 left) but BCAR factors were completely different to FAA.
As a digression, there were some rather amazing figures in those old DCA charts, there were several types where the "short dry grass + factored" were significantly less than the Cessna or Piper AFM distances, based on a sealed runway and no factor. "Go figure" is the appropriate expression.
Don't anybody suggest it would be "safer" to regress, ain't so.
As to the CASA "exam" charts, why don't you just ask them, 131757 is a free call.
Tootle pip!!