Sections 1129 and 1140 of the Social Security Act authorize judicial review of any penalty and assessment, as applicable, that has become final. Judicial review may be sought by a respondent only in regard to a penalty and assessment, as applicable, with respect to which the respondent requested a hearing, unless the failure or neglect to urge such objection is excused by the court because of extraordinary circumstances.
20 C.F.R. §498.127