Treasury Regulations (26 C.F.R.)
26 CFR § 41.7701-1 — Tax return preparer.
(a) In general. For the definition of a tax return preparer, see § 301.7701-15 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.
Source: official text