1. Short title This Act may be cited as the Proven Wildfire Reduction Techniques Act of 2019 . 2. Treatment areas Section 602 of the Healthy Forests Restoration Act of 2003 ( 16 U.S.C. 6591a ) is amended— (1) in the heading, by striking Designation of ; (2) by amending subsection (a) to read as follows: (a) Definitions In this section: (1) Coos Bay Wagon Road Grant lands The term Coos Bay Wagon Road Grant lands means the lands reconveyed to the United States pursuant to the first section of the Act of February 26, 1919 (40 Stat. 1179). (2) Declining forest health The term declining forest health means a qualified forest that is experiencing— (A) substantially increased tree mortality due to insect or disease infestation; or (B) dieback due to infestation or defoliation by insects or disease. (3) Oregon and California Railroad Grant lands The term Oregon and California Railroad Grant lands means the following lands: (A) All lands in the State of Oregon revested in the United States under the Act of June 9, 1916 (39 Stat. 218), that are administered by the Secretary of the Interior, acting through the Bureau of Land Management, pursuant to the first section of the Act of August 28, 1937 ( 43 U.S.C. 1181a ). (B) All lands in that State obtained by the Secretary of the Interior pursuant to the land exchanges authorized and directed by section 2 of the Act of June 24, 1954 ( 43 U.S.C. 1181h ). (C) All lands in that State acquired by the United States at any time and made subject to the provisions of title II of the Act of August 28, 1937 ( 43 U.S.C. 1181f ). (4) Public lands The term public lands has the meaning given that term in section 103 of the Federal Land Policy and Management Act of 1976 ( 43 U.S.C. 1702 ), except that the term includes Coos Bay Wagon Road Grant lands and Oregon and California Railroad Grant lands. (5) Qualified forest The term qualified forest means a forest located in— (A) National Forest System lands