; and (B) is inadmissible to, or deportable from, the United States; and (2) engaged in essential critical infrastructure labor or services in the United States prior to the period described in subsection (e) and continues to engage in such labor or services during such period. (e) Period described The period described in this subsection— (1) begins on the first day of the public health emergency declared by the Secretary of Health and Human Services under section 319 of the Public Health Service Act ( 42 U.S.C. 247d ) with respect to COVID–19; and (2) ends 90 days after the date on which such public health emergency terminates. (f) Essential critical infrastructure labor or services For purposes of this section, the term essential critical infrastructure labor or services means labor or services performed in an essential critical infrastructure sector, as described in the Advisory Memorandum on Identification of Essential Critical Infrastructure Workers During COVID–19 Response , revised by the Department of Homeland Security on April 17, 2020. 191204. Supplementing the COVID Response Workforce (a) Expedited green cards for certain physicians in the United States (1) In general During the period described in paragraph (3), an alien described in paragraph (2) may apply to acquire the status of an alien lawfully admitted to the United States for permanent residence consistent with section 201(b)(1) of the Immigration and Nationality Act ( 8 U.S.C. 1151(b)(1) ). (2) Alien described An alien described in this paragraph is an alien physician (and the spouse and children of such alien) who— (A) has an approved immigrant visa petition under section 203(b)(2)(B)(ii) of the Immigration and Nationality Act ( 8 U.S.C. 1153(b)(2)(B)(ii) ) and has completed the service requirements for a waiver under such section on or before the date of the enactment of this title