7 USC § 506
Returns under oath; administration
through Pub. L. 116-216 (December 11, 2020)
The returns provided for in this chapter shall be made under oath before a collector or deputy collector of internal revenue, a postmaster, assistant postmaster, or anyone authorized to administer oaths by State or Federal law.
Abolition of Offices and Transfer of Functions
See note under section 505 of this title.