U.S. Nuclear Regulatory Commission
Question 19: Current computer codes, such as LADTAP and
GASPAR, calculate individual organ doses for comparison
against individual organ dose limits in 10 CFR 50 Appendix
I and/or Technical Specifications. Will the codes have to
be modified to convert whole body and organ doses to
effective dose equivalents?
Answer: Appendix I is not changed by the revised Part 20.
Therefore, until Appendix I is changed, licensees must
continue to show compliance with technical specifications
based on Appendix I and expressed in terms of organ and
whole body doses. (Reference: Reactor Technical