ICE Guidance Needs Improvement to Deter Illegal Employment,” OIG-21-15. We determined the Worksite Enforcement (WSE) program compliance, civil enforcement, and outreach activities are not as effective as they could be to support U.S. Immigration and Customs Enforcement’s (ICE) immigration enforcement strategy. ICE officials did not consistently enforce ICE guidance, take timely and affirmative steps against unauthorized alien workers, and ensure the outreach program achieved measurable progress and was cost effective. We made four recommendations with which ICE officials concurred. Based on the information ICE provided, we consider the four recommendations resolved and open.