The main purpose of the Federal Carjacking Enforcement Act is to strengthen the federal laws related to carjacking. This legislation aims to make it easier to prosecute individuals who commit carjacking, particularly in cases where serious harm or the use of firearms is involved. Key provisions of the Act include changes to the language and penalties associated with carjacking offenses. The law now specifies that a person can be charged with carjacking if they knowingly take a vehicle, rather than requiring proof of intent to cause death or serious bodily harm.