Fed-OSHA
Federal Scaffold Requirements Section 1926.451 To find specific information on Federal Regulations on the scaffold.
Cal-OSHA
Scaffold Regulations for California has rules that supersede Federal Regulations.
SAIA
Scaffold & Access Industry Association promotes safety by developing educational material; conducting educational seminars and training courses; provide audio-visual programs and codes of safe practices and other training and safety aids.
SIAC
Scaffold Industry Association of Canada.