Treasury Regulations (26 C.F.R.)
26 CFR § 301.6103(m)-1 — (m)-1 Disclosure of taxpayer identity information.
(a) Definition. For purposes of applying the provisions of section 6103(m) of the Internal Revenue Code, the term agent includes a contractor.
(b) Effective date. This section is applicable January 6, 2004.
Source: official text