[JR]

``(1) Defense.--It is an affirmative defense to prosecution
under this section that the defendant, in good faith, has
restricted access by minors to material that is harmful to
minors--

``(A) by requiring use of a credit card, debit account,
adult access code, or adult personal identification number;

``( B ) by accepting a digital certificate that verifies age;
or
``(C) by any other reasonable measures that are feasible
under available technology.

``(2) Protection for use of defenses.--No cause of action
may be brought in any court or administrative agency against
any person on account of any activity that is not in
violation of any law punishable by criminal or civil penalty,
and that the person has taken in good faith to implement a
defense authorized under this subsection or otherwise to
restrict or prevent the transmission of, or access to, a
communication specified in this section.