That seems more ambiguous than the other statement I quoted. It can be read to mean that they are checking new customers now where they didn’t used to do that.
Yeah - I guess one could take it either way. Whether the guy is talking about “they” as in the same person (they came in last year, and now we are checking to see if they...) - or “last year we did not check if they (new customers) were legal, but now we are checking them...).
Regardless - it seems to be a pretty far-reaching law, and puts a lot of onus on the company. As I said earlier, does this now make it illegal for Home Depot to sell a leaf blower to an illegal? Perhaps it should be illegal for an illegal to do business with someone - and not vice-versa.