(a) Beginning July 1, 1990, no person may knowingly mix landscape waste that is intended for collection or for disposal at a landfill with any other municipal waste.
     (b) Beginning July 1, 1990, no person may knowingly put landscape waste into a container intended for collection or disposal at a landfill, unless such container is biodegradable.
     (c) Beginning July 1, 1990, no owner or operator of a sanitary landfill shall accept landscape waste for final disposal, except that landscape waste separated from municipal waste may be accepted by a sanitary landfill if (1) the landfill provides and maintains for that purpose separate landscape waste composting facilities and composts all landscape waste, and (2) the composted waste is utilized, by the operators of the landfill or by any other person, as part of the final vegetative cover for the landfill or for such other uses as soil conditioning material, or the landfill has received an Agency permit to use source separated and processed landscape waste as an alternative daily cover and the landscape waste is processed at a site, other than the sanitary landfill, that has received an Agency permit before July 30, 1997 to process landscape waste. For purposes of this Section, (i) “source separated” means divided into its component parts at the point of generation and collected separately from other solid waste and (ii) “processed” means shredded by mechanical means to reduce the landscape waste to a uniform consistency.
     (d) The requirements of this Section shall not apply (i) to landscape waste collected as part of a municipal street sweeping operation where the intent is to provide street sweeping service rather than leaf collection, nor (ii) to landscape waste collected by bar screens or grates in a sewage treatment system.