(a) Furnishing copy to taxpayer
Any person who is a tax return preparer with respect to any return or claim for refund shall furnish a completed copy of such return or claim to the taxpayer not later than the time such return or claim is presented for such taxpayer's signature.

(b) Copy or list to be retained by tax return preparer
Any person who is a tax return preparer with respect to a return or claim for refund shall, for the period ending 3 years after the close of the return period—

(1) retain a completed copy of such return or claim, or retain, on a list, the name and taxpayer identification number of the taxpayer for whom such return or claim was prepared, and

(2) make such copy or list available for inspection upon request by the Secretary.

(c) Regulations
The Secretary shall prescribe regulations under which, in cases where 2 or more persons are tax return preparers with respect to the same return or claim for refund, compliance with the requirements of subsection (a) or (b), as the case may be, of one such person shall be deemed to be compliance with the requirements of such subsection by the other persons.

(d) Definitions
For purposes of this section, the terms "return" and "claim for refund" have the respective meanings given to such terms by section 6696(e), and the term "return period" has the meaning given to such term by section 6060(c).