Ex-Offender Voter Registration Act of 2013 - Amends the federal criminal code to direct the Bureau of Prisons to include among reentry planning procedures the provision to federal prisoners of information about: (1) the laws and regulations governing the right of an individual convicted of a felony who has been released from prison to vote in each of the 50 states, and (2) any voter registration or application forms the prisoner will need to complete in order to vote in the state in which the prisoner will reside upon release.