Main classes
2X
Divisions
Sections
- 380Commerce, communications, transportation1
- 381Internal commerce (Domestic trade)3
- 382International commerce (Foreign trade)1
- 383Postal communication1
- 384Communications Telecommunication11
- 385Railroad transportation
- 386Inland waterway & ferry transportation
- 387Water, air, space transportation
- 388Transportation Ground transportation
- 389Metrology & standardization