The U.S. Department of Energy (DOE) is publishing a final rule to amend values listed in two appendices to its current occupational radiation protection regulation. The amendment to appendix C corrects the air immersion derived air concentration value for any single radionuclide not listed in the appendix C table with a decay mode other than alpha emission or spontaneous fission and with radioactive half- life less than two hours, adjusted for an 8-hr work day. The amendments to appendix E correct the activity information of two radionuclides, Rh-102 and Rh-102m.