Yet again, I don't see any recommendations to change particular regulations. I do see some regulations that changed, increasing costs in the 1970s, but that I'm not sure anybody wants to change:

-Triaxial accelerometers and spectrum recorders were added to much equipment, piping, and containment.

-Reg Guide 1.117 required protection from 360 mph tornado winds, in some cases increasing building wall thickness from 18 inches to 24.

-Drain systems for firefighting waterflow had to both prevent fire from spreading and also sample water for radiation.

-Swing diesels at multiunit plants were prohibited by RG 1.81.

-Liquid radwaste had to be solidified before shipping with cement systems costing $20/kW.

-Anti-sabotage measures attempted to avoid any one person in the maintenance crew from working on a set of redundant equipment

Are you suggesting that these should be changed and that these will reduce costs significantly?

Because it's not these regulations that caused massive overruns in Georgia and South Carolina, so I don't know why that will help. There are far far deeper issues in the industry, which is deeply troubled and incompetent.

Later on the venerable 2018 MIT report is cited, which is a far far far better root cause analysis of nuclear failure than "regulations." It doesn't recommend changes in regulations, but it does suggest more speedy approval of design changes during construction, to which I say, great. Make nuclear construction agile.