Penalty for understatement due to willful, reckless, or intentional conduct

(a) In general. A person who is a tax return preparer of any return or claim for refund of employment tax under chapters 21 through 25 of subtitle C of the Internal Revenue Code (Code) shall be subject to penalties under section 6694(b) of the Code in the manner stated in § 1.6694-3 of this chapter.