The Obstruction of View Corridors Ordinance (OMC 15.52) allows for pruning certain trees to eliminate or minimize view obstructions. Specified tree species (such as the coast live oak and California bay), all street trees, and all park trees are exempt from the provisions of this ordinance. Certain indigenous tree species may be exempt where present due to natural regeneration. Trees that do not qualify under this ordinance must be pruned in accordance to the Prune Your Own City Tree Guidelines.