If you applied during last year's application cycle, you will need to submit a new application. Please make sure you check the box that indicates you are a re-applicant in your application.
The Admissions Committee can use your previously submitted GMAT and TOEFL, if appropriate and your academic transcripts. Though the committee will review your previously submitted recommendations, you will be required to submit one new recommendation.
Applicants who applied before last year's application cycle must submit all new application materials.