23 CFR § 771.121 - Findings of no significant impact.
(a) The Administration will review the EA, comments submitted on the EA (in writing or at a public hearing or meeting), and other supporting documentation, as appropriate. If the Administration agrees with the applicant's recommendations pursuant to § 771.119(g), it will issue a separate written FONSI incorporating by reference the EA and any other appropriate environmental documents.
(b) After the Administration issues a FONSI, a notice of availability of the FONSI must be sent by the applicant to the affected units of Federal, State and local government, and the document must be available from the applicant and the Administration upon request by the public. Notice must also be sent to the State intergovernmental review contacts established under Executive Order 12372. To minimize hardcopy requests and printing costs, the Administration encourages the use of project websites or other publicly accessible electronic means to make the FONSI available.
(c) If another Federal agency has issued a FONSI on an action that includes an element proposed for Administration funding or approval, the Administration will evaluate the other agency's EA/FONSI. If the Administration determines that this element of the project and its environmental impacts have been adequately identified and assessed and concurs in the decision to issue a FONSI, the Administration will issue its own FONSI incorporating the other agency's EA/FONSI. If environmental issues have not been adequately identified and assessed, the Administration will require appropriate environmental studies.