U Stamp vs U2 Stamp: which ASME pressure vessel certification you need

The two ASME Section VIII divisions explained in commercial terms: what changes in design, cost, inspection and schedule.
How to spec a pipe spool so the quote is right the first time

Six data points that let a fabricator price a spool accurately — and the three omissions that cause most rework.
ASME B31.3 explained for buyers: what the piping code actually requires

What ASME B31.3 requires from a fabricator, which documents you should demand with the spools, and how code compliance shows up on the shop floor.