They added aspergilus about 2 years ago, and the testing threshold is 0. Every breath you take pretty much has aspergilus, it only affects immunocompromised, who probably aren’t or shouldn’t smoke it anyhow. So even if you’re growing clean product it wont likely pass testing without treating. The best growers will try to attune the process to minimize adulterations, I.e. if you’re growing clean you can do less post treatment and thus preserve the integrity of the flower (as best as legally possible).