Or. Admin. R. 437-002-0302
“Qualified Tree Worker” — A worker who through related training and on-the-job experience is familiar with the techniques and hazards of tree pruning, trimming, repairing, or removal, and the equipment used in such operations.
ORS 654.025(2) & 656.726(3)
ORS 654.001 - 654.295
OSHA 1-1996, f. & cert. ef. 2-16-96
OSHA 27-1990, f. 12-12-90, cert. ef. 2-1-91