43 CFR §3213.19

1. (a)You can prevent termination of your lease if, within 30 days after receipt of our notice:
   1. (1)You correct the violation; or
   2. (2)You show us that you cannot correct the violation during the 30-day period and that you are making a good faith attempt to correct the violation as quickly as possible, and thereafter you diligently proceed to correct the violation.
2. (b)
   1. (1)You may appeal the lease termination. You have 30 days after receipt of our notice to file an appeal (see parts 4 and 1840 of this title). We will stay the termination of your lease while your appeal is pending.
   2. (2)You are entitled to a hearing on the violation or the proposed lease termination if you request the hearing when you file the appeal. The period for correction of the violation will be extended to 30 days after the decision on appeal is made if the decision concludes that a violation exists.