The Mercer County Improvement Authority no longer collects grass clippings. The Township encourages composting. However, if you choose to throw out your grass clippings, it must be bagged and placed in your garbage cart on the regular garbage pickup day.
You may also take grass clippings to the Township Ecological Center located at 3701 Princeton Pike, Monday thru Friday, 7:30am to 2:30pm.
For more details regarding grass collection use this link.