To amend the Higher Education Act of 1965 to restrict the disqualification of students for drug offenses to those students who committed offenses while receiving student financial aid.

Responsible Student Financial Assistance Assurance Act of 2003 - Amends the Higher Education Act of 1965 to provide that only those students who have committed drug offenses during the period they were receiving student grant, loan, or work assistance shall have their eligibility for such assistance suspended upon conviction for such an offense.