Final answer:
The United States Congress granted the federal charter to the National FFA Organization, continuing a tradition of federal support for education and agriculture.
Step-by-step explanation:
The federal charter for the National FFA Organization was granted by the United States Congress. This is reflective of the federal government's historical role in supporting educational initiatives and other activities through grants, as seen with the land-grant colleges, starting with the Morrill Act of 1862. Such grants were especially significant in shaping sectors like agriculture and transportation, as well as reinforcing a national system that could efficiently support migration, commerce, and other vital national interests. The chartering of the National FFA is a continuation of this tradition of federal involvement and support for educational and agricultural development.