This is a link to a publication put out by WorkSafe BC on timber falling. Although it is designed for professional fallers working primarily in coniferous stands in a logging setting, the principles are very useful for newbies.
In BC, all professionals falling trees greater than 8" in diameter (including arborists) must be tested and certified. This is the manual that the certification is based on. If a tree has a line in it, then the cutter doesn't have to be certified. There is a bit of a jurisdictional battle between logger/fallers and arborists.
http://www.worksafebc.com/publicati.../assets/pdf/bc_faller_training_standard_1.pdf
http://www.worksafebc.com/publicati.../assets/pdf/bc_faller_training_standard_2.pdf
In BC, all professionals falling trees greater than 8" in diameter (including arborists) must be tested and certified. This is the manual that the certification is based on. If a tree has a line in it, then the cutter doesn't have to be certified. There is a bit of a jurisdictional battle between logger/fallers and arborists.
http://www.worksafebc.com/publicati.../assets/pdf/bc_faller_training_standard_1.pdf
http://www.worksafebc.com/publicati.../assets/pdf/bc_faller_training_standard_2.pdf