Looking to the language of the statute, the Supreme Court found it clear that an EIS is required only if there has been a report on a formal proposal for major federal action.

• 按照法令的语言表述，最高法院找到了确切的规定，即只有在某一重大联邦决定的正式提案提出之后，才要求一份“环境影响报告书”。