Robocall Enforcement Enhancement Act of 2018 This bill amends the Communications Act of 1934: to lengthen the statute of limitations from two years to three years for pursuing caller identification information violations (known as "spoofing"), to lengthen the statute of limitations from one year to three years for pursing automated telephone equipment violations (known as "robocalls"), and to authorize the Federal Communications Commission (FCC) to impose forfeiture penalties without first sending a citation regarding the charged violation against persons not licensed by the FCC who violate prohibitions on the use of automated telephone equipment.