To direct the Secretary of Transportation to conduct a notice and comment rulemaking before implementing certain policies relating to obstruction evaluation aeronautical studies, and for other purposes.

[AI summary unavailable — showing source text] Authorizes the Secretary of Transportation (DOT) to implement the policy set forth in the notice of proposed policy entitled "Proposal To Consider the Impact of One Engine Inoperative Procedures in Obstruction Evaluation Aeronautical Studies" published by the Department of Transportation (DOT) on April 28, 2014, only if the policy is adopted pursuant to notice and comment rulemaking.…