ok, lets address imposition. Such authority comes from a law or duty so what would that be ?
Before you try to play the card of receiving a SSN, let me throw this out to you:
5 USC 552A(a)
(13) the term “Federal personnel” means officers and employees of the Government of the United States, members of the uniformed services (including members of the Reserve Components), individuals entitled to receive immediate or deferred retirement benefits under any retirement program of the Government of the United States (including survivor benefits).
I am not a federal employee so now what? You will have to show me where I am some sort of statutory employee to perform a duty.