Changes

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| 2001 || || Policy || The Ecological Solid Waste Management Act is enacted by the Government of the Philippines, after collapse of dumpsite during the {{w|Payatas landslide}} resulted in over 200 deaths in 2000.<ref name="Solid Waste Management: Principles and Practice"/> || {{w|Philippines}}

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| 2001 || || || {{w|Waste Services Inc.}}