29 C.F.R. § 1614.409
Filing a civil action under § 1614.407 or § 1614.408 shall terminate Commission processing of the appeal. If private suit is filed subsequent to the filing of an appeal, the parties are requested to notify the Commission in writing.
[57 FR 12646, Apr. 10, 1992. Redesignated at 64 FR 37659, July 12, 1999. 77 FR 43505, July 25, 2012]