Waste hierarchy
The waste hierarchy is a ranked framework for selecting waste prevention and management options. Its usual priority order is prevention, preparing for reuse, recycling, other recovery such as energy recovery, and disposal. Lifecycle evidence can justify a different order for a particular waste stream when that produces a better overall environmental outcome.
In simple terms
The hierarchy asks decision-makers to avoid creating waste before considering what to do with it. If prevention is not possible, keeping a product or component in use generally comes before processing it into material. Recycling precedes lower-value recovery, while disposal is the last option. It is a priority framework rather than a claim that one treatment is always best in every location; technical feasibility, health protection, material properties, and lifecycle impacts remain relevant.
Why it matters
The waste hierarchy prevents recycling targets from becoming the only measure of progress. It directs attention upstream, where purchasing, design, maintenance, and reuse can avoid material loss altogether. Applied transparently, it also helps public authorities and organizations explain why they selected a treatment route and where infrastructure or product redesign is needed.
Example
A venue replacing disposable cups first considers avoiding unnecessary cups, then a reusable return system. Damaged items may be recycled where a suitable collection and processing route exists. Sending material for energy recovery or disposal is considered only after the higher-priority options are assessed for the actual system.
How it differs
Circular economy
The waste hierarchy ranks prevention and treatment choices; a circular economy is the broader economic model in which products, components, and materials circulate while resource use and waste decline.
Recycling
Recycling is one option within the waste hierarchy. It sits below prevention and preparing for reuse because reprocessing material can lose embedded product value and require additional energy.