80% of microplastic release occurs during domestic laundering, not manufacturing — yet consumers bear no cost signal.

12/garment EPR levy on synthetic textile manufacturers (~$4B/yr globally) is split: 50% subsidises household washing machine microplastic filters (<$15/unit) for low-income households; 30% mandates and funds commercial laundry retrofits; 20% funds monitoring and remediation R&D.

10-country EU + textile-exporter pilot demonstrates revenue collection, filter uptake, and measurable wastewater load reduction within 24 months.