employing agency during the period beginning on September 9, 2021, and ending on January 24, 2022, of the rights of impacted Federal employees under this Act. (b) Selection (1) In general An impacted Federal employee entitled to make a selection under section 2(a) must notify the former employing agency of such impacted Federal employee of his or her selection not later than 90 days after receiving the notice required by subsection (a). (2) Forfeiture An impacted Federal employee described in paragraph (1) that does not notify the former employing agency in accordance with such paragraph shall cease to be entitled to make a selection under section 2(a). (3) Agency compliance If an impacted Federal employee selects an appointment and payment under section 2(a)(1), not later than 90 days after such impacted Federal employee provides the notice in accordance with paragraph (1), the head of the former employing agency shall make the appointment described in section 2(a)(1). 4. Treatment of impacted Federal employees (a) In general Each impacted Federal employee— (1) is deemed to have been involuntarily separated without cause from the previous Federal position of such impacted Federal employee