If you neither pay nor appeal an order under this part, that order is the final decision of the Department, you have failed to exhaust administrative remedies as required under § 1290.110(a), and you may not contest the validity or merits of that order in any subsequent proceeding to enforce that order under 30 U.S.C. 1719 and part 1241 of this chapter.
[79 FR 62051, Oct. 16, 2014]