Any person who has been subpenaed under the provisions of subsection (d) of section 336 of the Immigration and Nationality Act to appear at the final hearing of an application for naturalization, and who shall neglect or refuse to so appear and to testify, if in the power of such person to do so, shall be fined under this title or imprisoned not more than five years, or both.
18 U.S. Code § 1429 - Penalties for neglect or refusal to answer subpena
1994—Pub. L. 103–322 substituted “fined under this title” for “fined not more than $5,000”.
1990—Pub. L. 101–649 substituted “an application” for “a petition”.
1981—Pub. L. 97–116 substituted “subsection (d)” for “subsection (e)”.
Amendment by Pub. L. 101–649 effective Nov. 29, 1990, with general savings provisions, see section 408(a)(3) and (d) of Pub. L. 101–649, set out as a note under section 1421 of Title 8, Aliens and Nationality.