32 U.S.C. § 329: Prohibition on private funding for interstate deployment

A member of the National Guard may not be ordered to cross a border of a State to perform duty (under this title or title 10) if such duty is paid for with private funds, unless such duty is in response to a major disaster or emergency under section 401 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act (42 U.S.C. 5170).