Hardy, a redshirt junior, was named in an internal investigation into academic violations by Notre Dame in August, he was one of five players to miss time this season as a result.
Hardy was the only one of the five allowed to return to the team.
The 6-foot-1 safety from Reynoldsburg, Ohio has registered 26 tackles in two seasons for the Fighting Irish, starting two games and appearing in ten.
After an invitation to return was extended by coach Brian Kelly, Hardy was reinstated to the roster in October; however, he did not return to team practices until after the team's bye week, which followed a 31-27 defeat to Florida State on October 18.
Hardy will travel with Notre Dame, 7-1 and ranked 10th by the College Football Playoff Committee, to Tempe to face Arizona State, 7-1 and ranked 9th by the committee, at 3:30 pm ET on Saturday.