SECTION 4. SCOPE

.01 Requests to which user fees apply . In general, user fees apply to all requests for letter rulings, opinion letters, determination letters, and advisory letters submitted by or on behalf of taxpayers, sponsoring organizations or other entities as described in this revenue procedure. Further, administrative scrutiny determination user fees, described in Rev. Proc. 93–41, are collected through the user fee program described in this revenue procedure. Requests to which a user fee or an administrative scrutiny determination user fee is applicable must be accompanied by