2. Regulatory Risk Assessment
2.1      Risk Assessments Developed Under Regulatory Guidelines
2.2      Risks from Naturally Occurring Carcinogens and Human Activities
2.3      Example Activities
2.4      Brief Overview of Recent Regulatory History in the USA
           2.4.1    Summary
           2.4.2    Timeline for Establishment of Agencies
           2.4.3    Statutory Timeline
           2.4.4    Supplemental Regulations
           2.4.5    Highlights for Some Agencies
           2.4.6    History of the California Environmental Protection Agency
           2.4.7    History of Food Regulation