II 115th CONGRESS 1st Session S. 436 IN THE SENATE OF THE UNITED STATES February 16, 2017 Mr. Heinrich (for himself and Mr. Udall ) introduced the following bill; which was read twice and referred to the Committee on Energy and Natural Resources A BILL To authorize the Secretary of the Interior to retire coal preference right lease applications for which the Secretary has made an affirmative commercial quantities determination, to substitute certain land selections of the Navajo Nation, to designate certain wilderness areas, and for other purposes.