14 CFR § 413.5
Pre-application consultation
July 13, 2020
A prospective applicant must consult with the FAA before submitting an application to discuss the application process and possible issues relevant to the FAA's licensing or permitting decision. Early consultation helps an applicant to identify possible regulatory issues at the planning stage when changes to an application or to proposed licensed or permitted activities are less likely to result in significant delay or costs to the applicant.
[Doc. No. FAA-2006-24197, 72 FR 17018, Apr. 6, 2007]