discharge of any firearm using ammunition other than nonlead ammunition certified under subsection (b) on all lands and waters under the jurisdiction and control of the Forest Service. (b) Certification (1) In general The Chief shall, for the purposes of enforcing this section and in consultation with State and Tribal governments, establish and annually update a list of nonlead ammunition. (2) Publication The Chief shall make the list established and updated under paragraph (1) publicly available on the website of the Forest Service. (c) Exceptions The prohibition under subsection (a) shall not apply to— (1) a Government official or agent carrying out a statutory duty unrelated to the management of wildlife