Legal authority includes, 10 U.S.C. sections 113, 331 - 335, 371 - 382, 2553, 2554, 2555, and 2564; 31 U.S.C. 1535 - 1536 (Economy Act); 42 U.S.C. section 5121 et seq. (Robert T. Stafford Disaster Relief and Emergency Assistance Act, as amended (Stafford Act)); and Public Law 94-524, as amended (Presidential Protection Assistance Act of 1976).