City of Tucson issued the following announcement on Dec. 22.
All City of Tucson offices, except for emergency services, will be closed Friday, Dec. 24, and Friday, Dec. 31, for Christmas Day and New Year's Day. Most offices will reopen on the following Mondays. Residential and commercial trash and recycling collection services will not change due to the holidays. The Los Reales Landfill and Household Hazardous Waste will be closed on Saturday, Dec. 25, and Saturday, Jan. 1. On Christmas Eve and Christmas Day, most Sun Tran routes and Sun Van will provide service once an hour (follow the link below). The Sun Link streetcar will run 8 a.m.-6 p.m. on Christmas Eve and Christmas Day; 7 a.m.-2 a.m. on New Year's Eve; and 8 a.m.-8 p.m. on New Year's Day. Most Sun Tran routes and Sun Van will provide service once an hour (follow the link below) on Dec. 24, Dec. 25, Dec. 31, and Jan. 1. Sun Express, Sun Shuttle and Oro Valley Sun Shuttle Dial-A-Ride will not be in operation, with the exception of ADA Dial-a-Ride for paratransit eligible riders, from 9 a.m.-6 p.m.
Original source can be found here.