have done that.... I have been all over the web and throughout irs.gov... before I listed my questions here.

I have found contradictory definitions as to what is a qualifiying business.

Generally, saying if there was a government mandate shuting down or limiting commerce.... then a company qualifies.  I have seen "essential businesses" do not qualify, but have also seen on IRS website and example using a grocery store, an essential business, for calculating qualified wages.  

My client is a Vet office. Her revenues fell 10-15%.  She did adjust all her proceedures to continue operating: no owners were allowed into the building (pets were collected by a vet tech from the vehicle), currently, only one owner allowed in the waiting room at a time, but still not allowed into the exam rooms.  Does she qualify because of this?

No amount of additional googling is giving me this answer.  I probably will have to do what I dred most -- calling the IRS.