; and (4) commits to following such rules and procedures, under penalty of all applicable laws, regulations, and policies of the Department. (c) Prioritization In administering the refresher training required under subsection (a), the Secretary shall prioritize the retraining of employees in the following order: (1) Employees who possess a security clearance at the Top Secret/Sensitive Compartmented Information level. (2) Employees who possess a security clearance at the Top Secret level. (3) Employees who possess a security clearance at the Secret level. (4) Employees who possess a security clearance at the Confidential Information level. (d) Delay in training (1) In general The Secretary may delay the provision of refresher training required under subsection (a) for up to 30 days for any specific official or employee of the Department or any group of officials or employees, up to the level of an individual office, if the Secretary considers such delay to be critical to the foreign policy interests of the United States. (2) Notice to Congress Not later than 30 days after authorizing a delay under paragraph (1), the Secretary shall submit a written notice of such delay, including a justification for the delay, to the relevant congressional committees. 507. Prohibition on contracting with certain telecommunications providers (a) List of covered contractors Not later than 30 days after the date of the enactment of this Act, the Secretary, in consultation with the Director of National Intelligence, shall develop or maintain, as the case may be, a list of covered contractors to be updated as frequently as the Secretary determines appropriate. (b) Prohibition on contracts The Secretary may not enter into a contract with a covered contractor on the list described under subsection (a). (c) Removal from list To be removed from the list described in subsection (a), a covered contractor may submit a request to the Secretary in such manner as the Secretary determines appropriate. The Secretary, in consultation with the