«Rules and Regulations of The American Theatre Wing's 2018–2019 Season»(PDF)(en inglés). 2018. p. 42. «Single Nomination in a Category. If the Tony Awards Nominating Committee has determined that there is only one nominee in a category listed in Paragraph 4(a) above, such category shall be submitted to the Tony Voters which may, by the affirmative vote of sixty (60%) percent of the total ballots cast, grant an Award in that category.»
