Any person, firm, corporation or contractor hired by the city to trim or remove trees must be bonded or insured for workman’s compensation and be bonded or insured for liability and personal injury to both public employees and private persons in an amount of at least $100,000.00 per person and be bonded or insured for liability and damage to public and private property in an amount of at least $100,000.00 per event. Any contractor hired by the city must demonstrate proof of such insurance before being allowed to begin any work on city or private property. [Ord. 435, 1993; Code 1975 § 6-2.0109.]