Al, that book is adding some cost that I will be willing to bet that many bidders will miss during the bid of a project with D1.8 invoked.
UT Level IIs, as you pointed out, will have to call their Level III back in to give them additional testing. I've never taken a practical,... "yet",... where there were twenty flaws to be evaluated. Usually just a few test plates with maybe two flaws each.
There is a good deal more mandatory MT/PT of material than in the usual building fabrications. I briefly looked through my MT procedures and it looks like my Level III has me covered when looking at the requirements listed. Some MT inspection must be performed a min of 48 hours after welding.
Intermix CVN testing of different filler metals.
WPS Heat input envelope testing(low and high).
The whole welder qualification deal with the restricted plates and the welder quals are only good for 36 months, even with continuity records. Extensions can be granted by the EOR if the project lasts more than 36 months.
I'm just getting into this, and I have noted this much ^^^ from the brief glance that I took through it a few minutes ago.