Section 313.4 - Major regulatory actions(a) Any initial, recommended, tentative or final decision, opinion, order, or final rule is a major regulatory action requiring an energy statement, if it:(1) May cause a near-term net annual change in aircraft fuel consumption of 10 million (10,000,000) gallons or more, compared to the probable consumption of fuel were the action not to be taken; or(2) Is specifically so designated by DOT because of its precedential value, substantial controversy with respect to energy conservation and efficiency, or other unusual circumstances.(b) Notwithstanding paragraph (a)(1) of this section, the following types of actions shall not be deemed as major regulatory actions requiring an energy statement:(1) Tariff suspension orders under section 41509 of 49 U.S.C. Subtitle VII, emergency exemptions or temporary exemptions not exceeding 24 months under section 40109 of 49 U.S.C. Subtitle VII and other proceedings in which timely action is of the essence;(2) Orders instituting or declining to institute investigations or rulemaking, setting or declining to set applications for hearing, on reconsideration, or on requests for stay;(3) Other procedural or interlocutory orders;(4) Actions taken under delegated authority; and(5) Issuance of a certificate where no determination of public convenience and necessity is required.(c) Notwithstanding paragraph (a)(1) of this section, DOT may provide that an energy statement shall not be prepared in a proceeding which may result in a major regulatory action, if it finds that:(1) The inclusion of an energy statement is not consistent with the exercise of DOT's authority under the Statute or other law;(2) The inclusion of an energy statement is not practicable because of time constraints, lack of information, or other unusual circumstances; or(3) The action is taken under laws designed to protect the public health or safety.Doc. No. 82, 50 FR 2425, Jan. 16, 1985, as amended at 60 FR 43529, Aug. 22, 1995; Doc. No. DOT-OST-2014-0140, 84 FR 15938 , Apr. 16, 2019