National Digital Reserve Corps Act This bill provides statutory authority for the National Digital Reserve Corps in the General Services Administration (GSA) to help address the digital and cybersecurity needs of executive agencies. The GSA shall issue guidance for the corps, including procedures for coordinating with such agencies to (1) identify digital and cybersecurity needs which may be addressed by the corps, and (2) assign active reservists to address such needs. The GSA must (1) begin recruiting reservists and assigning activities to reservists under the program within one year of this bill's enactment, and (2) report to Congress at specified intervals. The GSA may pay for reservists to acquire training and receive continuing education.