The Trojans spring semester began Jan 13.
In a meeting with the media Jan. 14, USC coach Steve Sarkisian said he was hopeful Pelon would be able to enroll at Troy by the end of the week, but added he was "more than hopeful" the four-star defensive tackle would be available for spring practices.
Pelon's enrollment was delayed as he waited on scores from one of his final JUCO classes.
"Claude is a big, physical defensive end," Sarkisian said in a statement released by the school. "He's a guy who we think can step right in and contribute immediately."
The Trojans lost defensive tackle George Uko a year early with him announcing for the NFL draft after the season.