18 U.S. Code § 521. Criminal street gangs
(a) Definitions.—“conviction” includes a finding, under State or Federal law, that a person has committed an act of juvenile delinquency involving a violent or controlled substances felony. “criminal street gang” means an ongoing group, club, organization, or association of 5 or more persons—
that has as 1 of its primary purposes the commission of 1 or more of the criminal offenses described in subsection (c);
the members of which engage, or have engaged within the past 5 years, in a continuing series of offenses described in subsection (c); and
the activities of which affect interstate or foreign commerce.
(c) Offenses.—The offenses described in this section are—
a conspiracy to commit an offense described in paragraph (1), (2), or (3).
(d) Circumstances.—The circumstances described in this section are that the offense described in subsection (c) was committed by a person who—
intends to promote or further the felonious activities of the criminal street gang or maintain or increase his or her position in the gang; and
(3) has been convicted within the past 5 years for—
an offense described in subsection (c);
(B) a State offense—
a conspiracy to commit an offense described in subparagraph (A), (B), or (C).
2018—Subsec. (c)(3), (4). Pub. L. 115–392 added par. (3), redesignated former par. (3) as (4), and in par. (4), substituted “(1), (2), or (3)” for “(1) or (2)”.