CFR›Title 10›Chapter III›Part 835›Subpart A ContainsSections 835.1–835.4CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Subpart A—General Provisions Sections 835.1 § 835.1 Scope. 835.2 § 835.2 Definitions. 835.3 § 835.3 General rule. 835.4 § 835.4 Radiological units. Next Appendix A to Part 835 Appendix A to Part 835—Derived Air Concentrations (DAC) for Controlling Radiation Exposure to Workers at DOE Facilities