i) Male subjects (unless vasectomized for at least 6 months with a history of confirmed azoospermia) with female partners who are WOCBP must agree to inform their female partners of the protocol-specified effective birth control methods requirement and pregnancy testing recommendations during treatment and post-treatment (i.e., two forms of effective methods of birth control and monthly pregnancy testing while the subject is enrolled in the study and 6 months following discontinuation of RBV [or for the post-treatment duration specified in the country-specific RBV label]), and agree to adhere to these recommendations both on-treatment and during the post-treatment follow-up period;