Or. Admin. R. 437-007-0325
The employer must provide and require each employee who operates a chain saw to wear flexible ballistic nylon pads, chaps or other equivalent protection in a manner that protects their legs from the top of the thigh to the top of the boot from contact with the moving saw chain.
EXCEPTION: This does not apply to an employee working aloft in trees when supported by climbing spurs and climbing belt.
ORS 654.025(2) & 656.726(4)
ORS 654.001 - 654.295
OSHA 5-2003, f. 6-2-03, cert. ef. 12-1-03