| 4921 | Couriers | ||
| 49211 | Couriers | ||
| 492110 | Couriers | ||
| 4922 | Local Messengers and Local Delivery | ||
| 49221 | Local Messengers and Local Delivery | ||
| 492210 | Local Messengers and Local Delivery | ||
SOURCE:
2002 NAICS--North American Industry Classification System
U.S. Census Bureau, Washington D.C.