1 CFR §304.31

1. (a)That individuals may not be denied any right, benefit, or privilege as a result of refusing to provide their social security numbers, unless the collection is authorized either by a statute or by a regulation issued prior to 1975;
2. (b)That individuals requested to provide their social security numbers, or any other information collected from them, must be informed, before providing such information, of:
   1. (1)Whether providing social security numbers (or such other information) is mandatory or voluntary;
   2. (2)Any statutory or regulatory authority that authorizes the collection of social security numbers (or such other information);
   3. (3)The principal purpose(s) for which the information is intended to be used;
   4. (4)The routine uses that may be made of the information; and
   5. (5)The effects, in any, on the individual of not providing all or any part of the requested information; and
3. (c)That, where the information referred to above is requested on a form, the requirements for informing such individuals are set forth on the form used to collect the information, or on a separate form that can be retained by such individuals.