; (C) is monitored by the relevant Federal land management agency during the project and after project completion to determine compliance with the instructions under paragraph (2); and (D) satisfies such other terms and conditions as the Secretary concerned determines to be appropriate. B Priority trail maintenance 411. Interagency trail management (a) In general The Secretaries shall establish an interagency trail management plan under which Federal land management agencies shall coordinate so that trails that cross jurisdictional boundaries between the Federal land management agencies are managed and maintained in a uniform manner. (b) Requirement The plan established under subsection (a) shall ensure compliance with all Federal environmental laws applicable to each jurisdiction.