That "may" there appears to refer to selecting among the choices (A), (B), or (C) within the statute. The portion before the selection list (which I did not qu

That "may" there appears to refer to selecting among the choices (A), (B), or (C) within the statute. The portion before the selection list (which I did not quote, as it can be read in full in the actual article) begins: A service provider shall, before December 30, 2018, notify ... This clause says they "shall" notify. So it is mandatory they notify. It is not mandatory that they perform the notification via the means they selected to perform the notification. The method is awful, but the method is allowed by at least clause (C) of the statute. Which was my original point. The bill sponsor replied that their intent was "by email" or "with the invoice". But what they wrote as the statute not only encompasses that intent, but allows choosing a huge number of other, many very awful (as is this one), ways of 'notifying' as well. If the sponsor's intent was "email" or "with invoice" then their statute should have said "by email" or "with invoice".