Sinto Investments is in the process of developing a 300-mile toll road that will run through federal land. Sinto will likely need:
a. a CERCLA certificate.
b. an environmental impact statement.
c. a clean air act authorization.
d. a national environmental policy act waiver.

Sinto will likely need an environmental impact statement.

Explanation: An environmental impact statement is a statement that is required when an activity that will affect the human environment is about to be carried out. This statement highlights the pros and cons of the activity that is to be carried out in the environment. Like in the question, a 300-mile toll road that will run through federal land will definitely have an impact on the environment, hence the requirement for an environmental impact statement.

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