; (2) whether the joint cyber position is a rotational cyber position; and (3) whether the position is vacant or is expected to become vacant within a year. (d) Competitive appointment (1) In general Except as provided in paragraph (2), the head of an agency shall make appointments to joint cyber positions (including rotational cyber positions) in a fully open and competitive manner that is consistent with the merit system principles set forth in paragraphs (1) and (2) of section 2301(b) of title 5, United States Code. (2) Waiver The Director may waive the requirements on appointments under paragraph (1). 4. Rotational service (a) In general An employee serving in a cyber position in an agency may submit an application for appointment to a rotational cyber position in that agency or another agency. (b) Term (1) In general Except as provided in paragraph (2), and notwithstanding section 3341 of title 5, United States Code, an appointment to a rotational cyber position shall be for a period of not less than 1 year and not longer than 3 years. (2) Waiver The Chief Human Capital Officer of an agency may waive the limitation on the period of an appointment under paragraph (1). (c) Appointment to positions in other agencies (1) Detail on a nonreimbursable basis Service by an employee in a rotational cyber position in an agency that is not the agency employing the employee— (A) shall constitute a detail of the employee from the agency employing the employee