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.r , <br />3.2 All tree work shall be performed following Dregon Safety and Health <br />- Administration regulations and following the American National Standards Institute, <br />A.N. S.I. Z 13 3.1, 3 40, or current version. <br />3.3 Pruning shall be deemed necessary when such action is to: <br />3.3.1 Correct structural problems, remove deadwood and decayed parts, <br />3.3.Z Enhance the tree's natural beauty and develop its natural shape, <br />3.3.3 Conrtply with the Eugene Code, 1971, <br />3.3.4 Correct a safety or health problem, <br />3.3.5 Clear the vision of regulatory signs, or <br />3.3.6 Maintain clearance around electrical lines. <br />3.4 All tree work performed near electrical lines shall conform to American <br />National Standards Institute C2, National Electrical Safety Code, and the Oregon Public <br />Utilities Commission Tree Clearance Policy, current edition. <br />3.5 Trees pruned for electrical line clearance sha11 follow the pruning guidelines <br />contained within the publication of Dr. Shigo entitled "Pruning Trees Near Electrical Lines' <br />current edition and be performed in accordance with the written agreement between the <br />Eugene Water & Electric Board ~EWEB} and the City. <br />3.6 Unless otherwise required herein, young trees shall be pruned leaving at least <br />two-thirds ~Z13} of the height of the tree in foliage and canopy. <br />3.7 Mature trees shall be pruned in a manner that retains well-spaced, inner lateral <br />branches so as to allow the trunk taper to be developed as needed for the strength of the <br />branch attachment. <br />3.8 No tree shall have mare than 20°/a of its canopy removed in any one pruning <br />or any one year unless approved in writing by the Urban Forester. <br />3.9 Street trees shall be pruned to allow clearance 9' above the sidewalk and 16' <br />above the street. Limbs maybe pruned back from the sidewalk and street or removed at the <br />trunk to meet these clearances iftwo-thirds X213) of the height of the tree remains in canopy. <br />3.10 No hooks, spikes, or climbing gear which pierces the trunk of a tree shall be <br />used unless approved in writing by the Urban Forester. <br />4. Tree Removal. No person shall remove a street tree without first obtaining a permit <br />from the City, specifically authorizing removal of the street tree, The Urban Forester shall review <br />the permit application and may condition approval upon replacement of the street tree with another <br />Exhibit B to Street Tree Plan Agreement <br />97-oo~z~ <br />