Which of the Following Is True of the Emission Trading

Multiple Choice

Which of the following is true of the emission trading scheme provided by the 1990 amendments to the Clean Air Act?

A) Allowances can be traded between companies, but cannot be sold.
B) Allowances can be sold to other companies that may be finding it more difficult to meet the standards.
C) It applies only to those companies engaged in interstate commerce.
D) Allowances can be sold to government, but not among private firms.