(a) The Buy America Preference does not apply to expenditures for assistance authorized under section 402, 403, 404, 406, 408, or 502 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act (42 U.S.C. 5170a,5170b,16,5172,5174,or,respectively,of.S.C. 5170, 5191) or pre and post disaster or emergency response expenditures.

(b) “Pre and post disaster or emergency response expenditures” consist of expenditures for financial assistance that are:

(1) Authorized by statutes other than the Stafford Act, 42 U.S.C. 5121 et seq.; and

(2) Made in anticipation of or response to an event or events that qualify as an “emergency” or “major disaster” within the meaning of the Stafford Act, 42 U.S.C. 5122(1), (2).