The problem is that there's no single THC percentage metric. Do you measure the total theoretical decarb'd d9-THC content? Do you measure just the d9-THC and pay no mind to the THCA? It's hard to know what 1%-4% means.
What I am saying is that due to bureaucracy and loopholes, there is a lot of hemp being sold in the US right now that's high in THCA (1%-4% is a reasonable range, maybe even higher) but is technically underneath the 0.3% d9-THC threshold that the labs are testing for.
Surely it's the total THCA/THC content that's being tested, as all the THCA is going to be converted to THC while being smoked/vaped, or when decarbed for edibles. Are they seriously only testing for THC and ignoring THCA? That would seem pretty unlikely.
What I am saying is that due to bureaucracy and loopholes, there is a lot of hemp being sold in the US right now that's high in THCA (1%-4% is a reasonable range, maybe even higher) but is technically underneath the 0.3% d9-THC threshold that the labs are testing for.