Section 49.15 - When does this part not apply?(a) The regulations in this part do not invalidate, modify, or impose additional restrictions or permitting requirements on mineral, reclamation, or related multiple-use activities which the Department or a bureau may authorize or for which permits may be issued under the general mining, mineral leasing, geothermal leasing, or mineral materials disposal laws.(b) The regulations in this part do not apply to Indian land.(c) The regulations in this part do not apply to any land other than Federal land as defined in this part, or resources other than paleontological resources as defined in this part.(d) On lands administered by BLM or Reclamation, the following are not subject to this part: (1) Fossilized minerals, including coal, oil shale, bitumen, lignite, asphaltum, tar sands, and other economic minerals that are subject to existing mining or mineral laws and geological units and industrial minerals, including, but not limited to, phosphate, limestone, diatomaceous earth, coquina, chalk beds, and paleosols. However, paleontological resources that occur within in these units may be subject to this part;(2) Petrified wood, defined at 30 U.S.C. 611 .