41 CFR 301-70.201: -70.201 Blanket actual expense authorization during Presidentially-Declared Disasters.

Agencies may issue a blanket authorization for their employees to be reimbursed their actual expenses up to 300 percent of the per diem rate when assigned to perform TDY travel in an area subject to a Presidentially-Declared Disaster. These authorizations must apply to a specific Declaration, and will expire one year from the date the Declaration is issued unless an agency head or their designee extends the blanket authorization based on a determination of necessity. A blanket authorization issued under this section shall not apply to any travel performed pursuant to chapter 302 of this subtitle.