Michael, just curious about how are seen in States the following
WRC Bulletin 538 Determination of Pressure Boundary Joint Assembly Bolt Loads
and
ASME PCC-1 - 2019 Guidelines for Pressure Boundary Bolted Flange Joint Assembly, APPENDIX O- ASSEMBLY BOLT STRESS DETERMINATION

As calculation methods, for me they appear to be an abandon of the classical Taylor-Forge (of course we can use here a nice word as "improvement") and a movement toward EN.

So I would reformulate Pat's question as
(Do you think) Will ASME / B31 Codes endorse APPENDIX O of ASME PCC-1?

Thanks,
M