Scott Emick
9/5/2025
The two are not the same — but they’re both under the U.S. Department of Homeland Security (DHS) and often get confused.
Here’s the breakdown:

Customs and Border Protection (CBP)
- Mission: Protect U.S. borders at and between ports of entry.
- Focus:
- Inspect people and goods entering the U.S.
- Prevent smuggling, contraband, and unauthorized entry.
- Enforce customs, immigration, and agricultural laws.
- Where they operate: Airports, seaports, and land borders.
- Key units: Border Patrol, Office of Field Operations.

Immigration and Customs Enforcement (ICE)
- Mission: Enforce immigration and customs laws inside the U.S. (after entry).
- Focus:
- Immigration enforcement (arrests, detention, deportation).
- Investigating human trafficking, financial crimes, and smuggling.
- Targeting employers who hire undocumented workers.
- Where they operate: Nationwide, not just at the border.
- Key units:
- Enforcement and Removal Operations (ERO) → deportation.
- Homeland Security Investigations (HSI) → criminal investigations.
✅ Quick way to remember:
- CBP = front line, border checkpoints.
- ICE = interior enforcement + investigations.
Here’s a simple comparison chart:
| Agency | Full Name | Main Role | Where They Operate | Key Units |
|---|---|---|---|---|
| CBP | Customs and Border Protection | Secures the border, inspects people & goods, prevents unauthorized entry | Borders, airports, seaports | Border Patrol, Office of Field Operations |
| ICE | Immigration and Customs Enforcement | Enforces immigration laws inside the U.S., investigates smuggling, trafficking, fraud | Nationwide, after entry into the U.S. | Enforcement and Removal Operations (ERO), Homeland Security Investigations (HSI) |
✅ Shortcut:
- CBP = Border Guards
- ICE = Inside Enforcers
There is also another agency, the USCIS, which handles visas, green cards, & citizenship. All three agencies are under the Department of Homeland Security.





