Economics

2. a subsection of the trucking industry that specializes in the transportation of goods across state lines
5. refined oil products
7. a company that specializes in the transportation of goods or people
9. the act of transporting goods on public roads
12. cargo that is temporarily stored inside a trailer in commerce
13. a minimum amount of imports that do not affect domestic products

1. freight transported by truck from commercial ports
3. a series of high speed roads that are utilized for faster transit of goods and people
4. the blockading of a good or service from another country
6. a tax on imported goods
8. a precious metal used as value indicators
10. a series of bill of ladings issued to motor carriers in commerce
11. a specialty made truck or trailer with a unit for temperature control