The steel we are using is mostly 4x3 and 3x3 box tubing, with most members being 3/16" thick. These will be canopy structures, holding very large solar installations. This work will be done on top of parking ramps and lots. The engineers aren't much help, they still haven't confirmed if D1.1 is necessary and they're still in the design phase and haven't worked with the welding code before, but I'll run the book down to them tomorrow and see if they'll take a look. I was assuming that we would be using PJP groove welds along the tops and bottom of T-connections, and fillet welds on the sides. They've already been bidding on these jobs and want us to be ready to jump the moment we get one. I'm just trying to prepare for any possible scenario by writing all the WPS's we may need.