NYC Department of Sanitation (DSNY) | 11,797 followers on LinkedIn. The NYC Department of Sanitation is the world’s largest sanitation department. | The NYC Department of Sanitation keeps New York City clean, safe, and healthy by collecting, recycling, and disposing of waste, cleaning streets, attacking the scourge of illegal dumping, and clearing snow and ice. The Department collects 24 million pounds of trash, recycling, and compostable material every day. We operate 59 district garages and manage a fleet of more than 2,000 rear-loading collection trucks, 450 mechanical brooms, 705 salt spreaders, and several dozen bike lane operations machines.