If BLM denies your application, or you withdraw it, you owe the processing fee set forth at §2884.12(b) of this subpart, unless you have a Processing Category 5 or 6 application. Then, the following conditions apply:

(a) If BLM denies your Processing Category 5 or 6 application, you are liable for all actual costs that the United States incurred in processing it. The money you have not paid is due within 30 calendar days after receiving a bill for the amount due; and

(b) You may withdraw your application in writing before BLM issues a grant or TUP. If you do so, you are liable for all actual processing costs the United States has incurred up to the time you withdraw the application and for the actual costs of terminating your application. Any money you have not paid is due within 30 calendar days after receiving a bill for the amount due.