The TEC-9 and, eventually, TEC-DC9 variants were listed among the 19 firearms banned by name in the USA by the now expired 1994 Federal Assault Weapons Ban (AWB). This ban caused the cessation of their manufacture, and forced Intratec to introduce a newer model called the AB-10, a TEC-9 Mini without a threaded muzzle/barrel shroud and limited to a 10-round magazine instead of a 20- or 32-round magazine. However, it accepted the standard capacity magazines of the pre-ban models.
The weapon was the subject of controversy following its use in the 101 California Street shootings and later the Columbine High School massacre. California amended its 1989 Roberti-Roos Assault Weapons Control Act (AWCA) later in 1999, effective January 2000, to ban firearms having features such as barrel shrouds.
In 2001, the Supreme Court of California ruled that Intratec was not liable for the 1993 California Street attacks. In that same year, the company went out of business and production of the AB-10 model ceased.
Although still found on the used firearms market, the TEC-9 and similar variants are banned, often by name, in several states including California, New York, New Jersey and Maryland.