City of Fairfield issued the following announcement on Jan. 1.
The City Street Department will begin at 7:00 AM. This service is provided for structures of 1-3 residential units; not multi-family dwellings of 4 or more.
This is for Christmas trees only and they must be placed curbside prior to 7:00 AM. Crews will not return once they have passed by. Please remove all decorations, lights, and plastic bags to guarantee that your tree will be picked up. Thank you for your continued cooperation to keep this service free.
Original source can be found here.
Source: City of Fairfield