U.S. Immigration and Customs Enforcement (ICE) reported that it is auditing approximately 1,000 U.S. employers of various sizes and in various states to ensure compliance with I-9 employment authorization verification procedures. ICE has not specified which companies are affected but is expected to focus on critical sectors, including agriculture and food; banking and finance; chemical; commercial facilities; commercial nuclear reactors, materials and waste; dams; defense industrial base; drinking water and water treatment systems; emergency service; energy; government facilities; information technology; national monuments and icons; postal and shipping; public health and health care; telecommunications; and transportation systems.

The fiscal year 2011 I-9 audit total is 2,338 employers, surpassing the fiscal year 2010 record of 2,196.