The US EPA environmental regulations are present in code order. If you are unfamiliar with the code system (for example, waste regulations are found in subpart I 240 - 283, hazardous waste at 260- 280), use your browser's page search function - or scroll through the list. Clicking on a link will bring up that set of regulations for viewing or download - free. The parts listed under each subchapter access the Electronic Code of Federal Regulations (e-CFR) database available from the Government Printing Office (GPO). 
Subchapter A - General (Parts 1--29) Subchapter B - Grants and Other Federal Assistance (Parts 30--49)
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