Contrary to what some might expect, printed copies of the revised Spanish NWT will be offered to non-JWs (source, p. 3):
The following announcement is for Spanish congregations only:
3. Use of Revised New World Translation: Now that most Spanish-speaking congregations have a modest stock of the revised New World Translationon hand, please proceed with offering this translation of the Bible to those studying the Bible, regular return visits, or other sincerely interested people in the field ministry who express a desire to have a Bible. Of course, we would not leave our precious literature with those who do not appreciate it. (Matt. 7:6) When engaging in public witnessing using a table or a cart, publishers should not display Bibles. However, they may have Bibles available to offer to individuals who request one or who demonstrate sincere interest in the truth.
If you would benefit from having additional copies for your personal use, there is no restriction on requesting them at the literature counter. The regular-size and pocket-size editions are not special-request items, and efforts will be made to maintain a modest supply at the Kingdom Hall so that Bibles are readily available for use in the ministry.