U.S. Code / Title 30 — Mineral Lands and…Title 30ChapterChapter 13—Control of Coal-Mine FiresContents§ 551. Declaration of policy§ 552. Definitions§ 553. Duties of Secretary; surveys, research, etc.; projects§ 554. Lands subject to chapter§ 555. Conditions precedent for aid to non-Federal lands§ 556. Administration§ 557. Rules and regulations§ 558. Authorization of appropriations