Is there an appeal process for denials/unfavorable recommendations for a waiver by the Waiver Review Division?

There is an internal agency review process, but there is no formal appeal process for the applicant. However, the visitor may be eligible to reapply based on another statutory ground, e.g. if the first application was based on a "no objection" statement from the applicant's home country and then reapplies based on an interested U.S. Government agency (IGA) request, a claim of exceptional hardship to a U.S. citizen or legal permanent resident spouse or child(ren), or based on a fear of persecution if the applicant is required to return to his/her home country.