1057. Other Exceptions
In addition to the authorized interceptions discussed above, the remaining two major kinds of authorized interceptions are (1) the court-authorized or emergency interceptions conducted pursuant to 18 U.S.C. § 2516 et seq., and (2) electronic surveillance conducted pursuant to the Foreign Intelligence Surveillance Act (50 U.S.C. § 1801 et seq.).
[cited in JM 9-60.200]