Why isn't the Use Appendix P (B31.3) option available for selection in B31.3 edition 2014 of AutoPIPE?
Please see the following AutoPIPE help section:
Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> ASME B31.3 (2014)> see note at bottom of page
ASME B31.3 Piping Code Calculation Issues
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