Private business cannot compel you to provide your SSN
unless the transaction involves notification of the IRS.

No law prevents private business from asking for your
SSN, and no law exists to prevent them from refusing to
do business with you for refusing to release your SSN.

These two together (both of which are in fact true) do give the lie to
the word "compel" though.

Jose
--
You can choose whom to befriend, but you cannot choose whom to love.
for Email, make the obvious change in the address.