• Chemical processes require better control
• Waste prevention is better than treatment or clean-up
• Chemical products should break down into benign products
• Raw materials should increasingly be renewable
• Substances should have minimum potential for accident
• Chemical synthesis should maximise the incorporation of all starting materials
• Chemical synthesis should ideally use and generate non-hazardous substances
• Chemical products should be designed so as to be non-toxic
• Catalysts are superior to reagents
• The use of auxiliaries should be minimised
• Derivatives should be minimised