We reviewed four classes of notes from SLM Student Loan Trust 2003-1, a transaction backed by FFELP student loans. We lowered our ratings on the notes to 'A (sf)' from 'AA (sf)'. The downgrades of the senior classes reflect a slowed pace in notes principal repayment, and the downgrade of the subordinate class B notes reflects the relationship of their risk of repayment to the senior classes. NEW YORK (S&P Global Ratings) March 17, 2022--S&P Global Ratings today lowered its ratings on four classes of notes from SLM Student Loan Trust 2003-1 (see list). The transaction primarily consists of Stafford and Consolidation student loans originated through the U.S. Department of Education's (ED) Federal Family Education Loan Program (FFELP). Loans that