Subpart R: Resources
Subpart R protects the public and the environment from the hazards of radioactive materials found in phosphogypsum.
- Some Guidance on Applying for Approval for Other Uses of Phosphogypsum (pdf)
- Workbook: Applying to EPA for Approval of Other Uses of Phosphogypsum: Preparing and Submitting a Complete Petition Under 40 CFR 61.206 (pdf)
- Potential Uses of Phosphogypsum and Associated Risks: Background Information Document (pdf)
- Background Information Document: ADDENDUM - Risk Assessment for Research and Development Uses of Phosphogypsum (pdf)
- Background Information Document: Statistical Procedures for Certifying Phosphogypsum for Entry into Commerce As Required by Section 61.207 of 40 CFR Part 61 Subpart R (pdf)
- Comments and Response to Comments, NESHAPs: National Emission Standards for Radon Emissions from Phosphogypsum Stacks (pdf)
- Background Information Document Volume 2: Risk Assessments/Environmental Impact Statement, NESHAPS for Radionuclides, September 1989, EPA-520-1-89-0206-1