If you do not live in an area that receives organics collections, then you must dispose of your leaves with your garbage.
You can place leaves, grass clippings, and small twigs (less than 1/2 inch in diameter) curbside for collection on your regularly scheduled trash collection days into:
Twigs and branches greater than 1/2 inch in diameter cannot be thrown out with leaves and grass clippings; you must follow wood disposal guidelines.
There is no limit to the amount of clippings that can be put out for collection as long as they were produced by residents and not landscapers. It is illegal for commercial landscapers to dispose of yard waste by placing it at the curb for collection.
Leaves may also be composted in the backyard, left on the lawn, or taken to a neighborhood-based leaf and yard waste composting site.