The San Francisco Department of Sanitation was the government agency in the city of San Francisco responsible for collecting garbage. This department owned rear loading garbage trucks.
In 1986, two employees from this department were collecting garbage in the Golden Gate Park when the HMS Bounty landed. (Star Trek IV: The Voyage Home)
In 2024, during the Bell Riots, Jadzia Dax successfully passed through the Sanitation Department checkpoint with a recoded identification card. (DS9: "Past Tense, Part II")
The name of this department is seen briefly on the driver's door as the "City of San Francisco Department of Sanitation".