26 CFR § 41.6694-1
Section 6694 penalties applicable to tax return preparer
June 25, 2020
(a) In general. For general definitions regarding section 6694 penalties applicable to preparers of tax returns or claims for refund, see §1.6694-1 of this chapter.
(b) Effective/applicability date. This section is applicable to returns and claims for refund filed, and advice provided, after December 31, 2008.
[T.D. 9436, 73 FR 78455, Dec. 22, 2008]