The City Engineer may issue, at no charge, permits for the erection and maintenance by abutting owners or tenants, upon sidewalks within the City, of tree, flower or shrub planter boxes of a size and design approved by the City Engineer.
Such planters shall bear no advertising of any kind, shall be placed only at the locations specified on the permits and shall at all times be maintained in good condition. The plantings therein shall conform to standards fixed by the City Engineer and shall be properly trimmed and cared for by the permit holder. Permits shall be revocable at any time. Upon revocation thereof, it shall be the duty of the permit holder to remove the planter.
The permit holder shall indemnify the City for any loss, claim, injury or judgment arising out of the erection or maintenance of such planters.