; and (B) at the top secret level are issued in 90 days or fewer; and (2) reciprocity of security clearances at the same level are recognized in 2 weeks or fewer. (c) Certain reinvestigations The Council shall reform the security clearance process with the goal that by December 31, 2021, reinvestigation on a set periodicity is not required for more than 10 percent of the population that holds a security clearance. (d) Equivalent metrics (1) In general If the Council develops a set of performance metrics that it certifies to the appropriate congressional committees should achieve substantially equivalent outcomes as those outlined in subsections (b) and (c), the Council may use those metrics for purposes of compliance within this provision. (2) Notice If the Council uses the authority provided by paragraph (1) to use metrics as described in such paragraph, the Council shall, not later than 30 days after communicating such metrics to departments and agencies, notify the appropriate congressional committees that it is using such authority. (e) Plan Not later than 180 days after the date of the enactment of this Act, the Council shall submit to the appropriate congressional committees and make available to appropriate industry partners a plan to carry out this section. Such plan shall include recommended interim milestones for the goals set forth in subsections (b) and (c) for 2019, 2020, and 2021. 6. Security Executive Agent (a) In general Title VIII of the National Security Act of 1947 ( 50 U.S.C. 3161 et seq.) is amended— (1) by redesignating sections 803 and 804 as sections 804 and 805, respectively