U.S. Code
Regulations
Constitution
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
x
Search
Search guide
U.S. Code of Federal Regulations
Regulations most recently checked for updates: Sep 17, 2025
All Titles
Title 40
Chapter I
Part 61
Subpart R - Subpart R—National Emission Standards for Radon Emissions From Phosphogypsum Stacks
§ 61.200 - Designation of facilities.
§ 61.201 - Definitions.
§ 61.202 - Standard.
§ 61.203 - Radon monitoring and compliance procedures.
§ 61.204 - Distribution and use of phosphogypsum for outdoor agricultural purposes.
§ 61.205 - Distribution and use of phosphogypsum for indoor research and development.
§ 61.206 - Distribution and use of phosphogypsum for other purposes.
§ 61.207 - Radium-226 sampling and measurement procedures.
§ 61.208 - Certification requirements.
§ 61.209 - Required records.
§ 61.210 - Exemption from the reporting and testing requirements of 40 CFR 61.10.
Download the GovRegs app!
