Ottawa residents put their green bins to the curb for the first time today.

The city's organic composting program is in full swing, with waste already being picked up from several neighbourhoods.

Household compost, kitty litter, fireplace ashes, yard waste and other items such as microwave popcorn bags and napkins can all be composted. (Here's the complete list.)

The city has also offered residents a free liner to be used for indoor composts.

On average, the program will cost the city roughly $38 per household -- or $13.4 million -- each year.

Although green bins are already being put out for street-side pick up, the facility that handles the waste is not ready to process the material.

Meantime, the material will be temporarily shipped to organic waste facilities in Kingston and Moose Creek. Orgaworld predicts its facility in Ottawa will be ready to process organic waste by Jan. 27.