43 CFR §3513.17

1. (a)The BLM may reduce rental, royalties, or minimum production on its own initiative if the BLM determines, based on available information, that it is necessary to promote development of the mineral resource. Such a reduction may be for a specific geographic area, or on an industry-wide basis.
2. (b)The BLM may reduce rental, royalties, or minimum production in response to an application submitted under § 3513.15 if the application meets the criteria in § 3513.12.
3. (c)The BLM may grant a reduction not to exceed:
   1. (1)10 years from the date of implementation under paragraph (a) of this section, or
   2. (2)10 years from the date of the decision to approve the application submitted under paragraph (b) of this section, or for a maximum quantity of mineral production as determined by the BLM.