Specifications include, but are not limited to: Applicants will provide regularly scheduled litter removal along sidewalks within the designated cleaning areas so that these areas maintain a litter index between 1 and 2, with little to no litter, during business hours. The chart below listing eligible cleaning areas indicates the weekly frequency that Commerce believes may be needed to maintain the required level of cleanliness. Cleaning activities include removal of litter and weeds from sidewalks, curbs and the section of street found within 18 inches of the curb. Also, cleaning activities may include power-washing sidewalks, and removing graffiti, posters, stickers and other debris from public fixtures, mailboxes, signs, signposts, benches, telephone booths as well as maintenance of gateways, street trees, planters or vacant lots found in and around commercial areas.