W-2G Section references are to the Internal Revenue Code unless otherwise noted. Except as explained in 2 above, reportable other payments are subject to backup withholding only if 1 or 3 above applies.
Some payees are exempt from backup withholding.
Failure to furnish TIN in the manner required. Withhold on payments made until the TIN is furnished in the manner required. Applied For in the TIN block and by signing the form. This form then becomes an awaiting-TIN certificate, and the payee has 60 days to obtain a TIN and furnish it to you. If you do not receive a TIN from the payee within 60 days and you have not already begun backup withholding, begin backup withholding and continue until the TIN is provided.