26 U.S.C. § 6331 — Levy and distraint
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Whenever any property or right to property upon which levy has been made by virtue of subsection (a) is not sufficient to satisfy the claim of the United States for which levy is made, the Secretary may, thereafter, and as often as may be necessary, proceed to levy in like manner upon any other property liable to levy of the person against whom such claim exists, until the amount due from him, together with all expenses, is fully paid.
(d) Requirement of notice before levy › (1) In general Levy may be made under subsection (a) upon the salary or wages or other property of any person with respect to any unpaid tax only after the Secretary has notified such person in writing of his intention to make such levy.
(d) Requirement of notice before levy › (2) 30-day requirement The notice required under paragraph (1) shall be— (A) given in person, (B) left at the dwelling or usual place of business of such person, or (C) sent by certified or registered mail to such persons’s last known address, no less than 30 days before the day of the levy.
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