Emergency period
The term “emergency period” means a period during which there exists—
(i)#
a public health emergency declared by the Secretary of Health and Human Services under section 247d of this title ;
(ii)#
any renewal of such a public health emergency pursuant to such section 247d;
(iii)#
a presidentially declared major disaster as defined under section 5122 of this title ; or
(iv)#
a presidentially declared emergency as defined under section 5122 of this title .