WM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America. Perform Preventive Maintenance: Execute routine maintenance tasks, including oil changes, component lubrication, fluid checks, filter and wiper blade replacements, and inspections, to prevent breakdowns and prolong the lifespan of vehicles and equipment.