Section 12.20 - General requirements(a) Unless provided with a written exemption pursuant to § 12.21 , every applicant or licensee must develop and file with the Regional Engineer an emergency action plan and appendices, verified in accordance with § 12.13 .(b) The emergency action plan must be: (1) Developed in consultation and cooperation with appropriate Federal, state, and local agencies responsible for public health and safety; and(2) Designed to provide early warning to upstream and downstream inhabitants, property owners, operators of water-related facilities, recreational users, and other persons in the vicinity who might be affected by a project emergency as defined in § 12.3(b)(9) .Order 122, 46 FR 9036, Jan. 28, 1981, as amended at 87 FR 1515 , Jan. 11, 2022