I guess I will try and find that...
on Edit: found it:
Blanco requested per section 401:
"§ 5170. PROCEDURE FOR DECLARATION {Sec. 401}
All requests for a declaration by the President that a major disaster exists shall be made by the Governor of the affected State. Such a request shall be based on a finding that the disaster is of such severity and magnitude that effective response is beyond the capabilities of the State and the affected local governments and that Federal assistance is necessary. As part of such request, and as a prerequisite to major disaster assistance under this Act, the Governor shall take appropriate response action under State law and direct execution of the State's emergency plan. The Governor shall furnish information on the nature and amount of State and local resources which have been or will be committed to alleviating the results of the disaster, and shall certify that, for the current disaster, State and local government obligations and expenditures (of which State commitments must be a significant proportion) will comply with all applicable cost-sharing requirements of this Act. Based on the request of a Governor under this section, the President may declare under this Act that a major disaster or emergency exists.
(Pub. L. 93-288, title IV, § 401, as added Pub. L. 100-707, title I, § 106(a)(3), Nov. 23, 1988, 102 Stat. 4696.)
< Back To Top >
black line"
However the President has the authority to act on his own:
"§ 5170a. GENERAL FEDERAL ASSISTANCE {Sec. 402}
In any major disaster, the President may--
1. direct any Federal agency, with or without reimbursement, to utilize its authorities and the resources granted to it under Federal law (including personnel, equipment, supplies, facilities, and managerial, technical, and advisory services) in support of State and local assistance efforts;
2. coordinate all disaster relief assistance (including voluntary assistance) provided by Federal agencies, private organizations, and State and local governments;
3. provide technical and advisory assistance to affected State and local governments for--
1. the performance of essential community services;
2. issuance of warnings of risks and hazards;
3. public health and safety information, including dissemination of such information;
4. provision of health and safety measures; and
5. management, control, and reduction of immediate threats to public health and safety; and
4. assist State and local governments in the distribution of medicine, food, and other consumable supplies, and emergency assistance.
(Pub. L. 93-288, title IV, § 402, as added Pub. L. 100-707, title I, § 106(a)(3), Nov. 23, 1988, 102 Stat. 4696.)"
http://www.fema.gov/library/stafact.shtm#sec401