; and (B) any identified measures to address such shortage. (4) Certain appointments (A) In general If the Secretary determines that the number of intermittent disaster response personnel within the National Disaster Medical System under this section is insufficient to address a public health emergency or potential public health emergency, the Secretary may appoint candidates directly to personnel positions for intermittent disaster response within such system. The Secretary shall provide updates on the number of vacant or unfilled positions within such system to the congressional committees of jurisdiction each quarter for which this authority is in effect. (B) Sunset The authority under this paragraph shall expire on September 30, 2021. . (4) Authorization of appropriations Section 2812(g) ( 42 U.S.C. 300hh–11(g) ) is amended by striking $52,700,000 for each of fiscal years 2014 through 2018 and inserting $57,400,000 for each of fiscal years 2019 through 2023 . (b) Volunteer medical reserve corps (1) In general Section 2813(a) ( 42 U.S.C. 42 U.S.C. 300hh–15(a)) is amended by striking the second sentence and inserting The Secretary may appoint a Director to head the Corps and oversee the activities of the Corps chapters that exist at the State, local, tribal, and territorial levels. . (2) Authorization of appropriations Section 2813(i) ( 42 U.S.C. 300hh–15(i) ) is amended by striking 2014 through 2018 and inserting 2019 through 2023 . (c) Strengthening the Epidemic Intelligence Service Section 317F (42 U.S.C. Sec. 247b–7) is amended— (1) in subsection (a)— (A) in paragraph (1)— (i) by inserting or preparedness and response activities, including rapid response to public health emergencies and significant public health threats after conduct prevention activities ; and (ii) by striking $35,000 and inserting $50,000 ; and (B) in paragraph (2)(B), by striking 3 years and inserting 2 years