What organization became a cabinet level department in 1967?

The Department of Transportation became a cabinet-level department in 1967 as part of a broader effort to consolidate and improve transportation-related governance and policy-making in the United States. The establishment aimed to provide a coordinated approach to addressing the nation's transportation needs, which were becoming increasingly complex due to the growth of the highway system, aviation developments, and the expansion of public transit systems.

Key areas of focus for the newly formed department included improving road safety, enhancing infrastructure, and promoting research related to transportation systems. This move also reflected the government’s recognition of transportation as a vital component of the economy and national infrastructure, necessitating dedicated resources and specialized leadership.

In contrast, the other organizations listed either were established later (like the Environmental Protection Agency in 1970) or did not achieve cabinet-level status until after 1967, making the Department of Transportation the correct answer in this context.