| hmac.org | Hazardous Materials Advisory Council |
| costha.com | Conference on Transportation of Hazardous Articles (COSTHA) |
| swana.org | Solid Waste Association of North America (SWANA ) |
| nswma.org | National Solid Wastes Management Association (NSWMA) |
| nowra.org | National Onsite Wastewater Recycling Association (NOWRA) |
| isri.org | Institute of Scrap Recycling Industries |
| fead.be | European Federation of Waste Management and Environmental Services |
| envasns.org | Environmental Industry Interactive (EII) |
| ciwm.co.uk | Chartered Institution of Wastes Management |
| recycledpaper.org.uk | British Recovered Paper Association |
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