ACC Understanding Critical Aircraft and Regular Use Determination On-Demand Webinar

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  • Register
    • ACC Member - $149
    • Military (excludes contractors; .mil email required) - $99
    • Airport/Airline Employee - $99
    • Local, State or Federal Government Agency - $99
    • Academic (.edu Email Required) - $49
    • Non-member - $199

This ACC on-demand webinar will provide an overview of the Federal Aviation Administration (FAA) definitions and methodology for determining the critical aircraft at the airport and how to use it in planning and design. Indeed, aviation facilities shall be designed and built to safely accommodate the aircraft fleet that will serve the airport at a reasonable planning horizon. The FAA sets design standards for this purpose – such as the dimensions of the safety areas protecting the runway and taxiway-to-object separation distances. These criteria depend on the size of the aircraft using the airport, and so it is important to identify the most demanding, frequent aircraft type. Defining the critical aircraft helps to ensure proper development of the airport and appropriate federal investments. The webinar will also offer examples and make attendees aware of the FAA and industry document resources, such as the FAA Advisory Circular 150/5000-17 – Critical Aircraft and Regular Use Determination, and processes.   


At the end of this ACC on-demand webinar, participants will be able to:
• Explain the definition of critical aircraft and related concepts.
• Describe the role of the critical aircraft in the FAA processes.
• Determinate critical aircraft for purpose of airfield design and long-term planning.
• Use FAA Advisory Circular 150/5000-17 – Critical Aircraft and Regular Use Determination.


• Mark Kuttrus, Assistant Vice President and Senior Aviation Planner, WSP USA (Moderator)
• Gaël Le Bris, Senior Aviation Planner and Senior Technical Principal, WSP USA

Kent Duffy, Operations Research Analyst, Federal Aviation Administration (FAA)


The registration fee is $89 and registration is per person. Participants will have 30 days from registration to complete this webinar.


To earn PDH credits for this on-demand webinar, you will need to view the recording in its entirety, complete the brief evaluation survey, and pass the quiz with a score of 70% or better. ACC reports attendance/PDH credits to eligible participants directly to within 30 days of receiving notification of your passing grade. 

Mark Kuttrus, AICP (Moderator)

Assistant Vice President and Senior Aviation Planner


Mark Kuttrus, AICP, is Assistant Vice President and Senior Aviation Planner with WSP USA aviation group. Mr. Kuttrus has 34 years of experience in airport planning and project management for some of the busiest airports in the world, including ATL, LAX, MSP, PHL, SAT, and SFO. Mr. Kuttrus has a B.S. degree in engineering and aviation management from The Ohio State University. He is chairman of the ACC’s Education and Training Committee and also former chairman of the ACC/AAAE Airport Planning, Design & Construction Symposium.

Gaël Le Bris, CM, P.E.

Senior Aviation Planner and Senior Technical Principal - WSP USA

Gaël Le Bris, C.M., P.E. is a Senior Aviation Planner and Senior Technical Principal with WSP USA. He is an engineer and holds two master’s degrees in aviation. Mr. Le Bris supervises aviation system and airport planning projects, and provide expertise in aviation engineering, operations and safety in the U.S. and abroad. Prior to joining WSP, Mr. Le Bris was the Airside Development Manager at Paris-CDG Int’l. Airport, France. He has conducted various research projects in airport engineering, airfield operations and aviation safety. He is a committee member of the Airport Consultants Council (ACC), SAE International, the Transportation Research Board (TRB), and The French-Speaking Airports.

Kent Duffy

Operations Research Analyst

Federal Aviation Administration

Kent Duffy is an operations research analyst in the Federal Aviation Administration’s (FAA) Office of Airports, supporting initiatives related to airport capacity as well as technical and strategic planning. He serves as the FAA's National Resource Expert on Airport/Airspace Capacity. Prior to joining FAA, Mr. Duffy worked in the consulting industry supporting large-scale airport development projects. He has a BS in Aeronautical Science from Florida Tech, and a Master’s in Public Policy from George Mason University.  Mr. Duffy has also worked as a flight instructor.


ACC On-Demand Webinar
Select the "View On-Demand Recording" button to begin.
Select the "View On-Demand Recording" button to begin. Participants must use Google Chrome, Microsoft Edge, or Mozilla Firefox as their web browser to view this webinar recording. Please download the presentation under the "Handouts" tab before viewing the recording.
ACC Evaluation Survey
11 Questions
11 Questions Participants are required to complete the evaluation survey to earn PDH credits for attendance.
Quiz to Earn PDH Credits
8 Questions  |  3 attempts  |  70/100 points to pass
8 Questions  |  3 attempts  |  70/100 points to pass


Participants are responsible for meeting all the following criteria to earn PDH credits for this on-demand webinar: 
• Be a paid and registered participant for this training; 
• View the recording in its entirety (credits are not issued for partial viewing); 
• Complete the evaluation survey; and
• Pass the quiz with a score of 70% or better.


ACC reports attendance and PDH credits for eligible participants directly to within 30 days of the passing of your quiz for this on-demand webinar. Participants will receive an automated email directly from RCEP/ACEC with notification of reporting of attendance/PDH credits by ACC, and are encouraged to check their spam/junk email in-box for this communication. Participants can log-in to their RCEP account and download/print a copy of their certificate of completion. If the participant does not have an existing account with RCEP, one is automatically created for them when ACC reports on-demand webinar attendance/PDH credits. The automated email sent to the participant from RCEP will include details on how to log-in to their new account, along with a temporary account password. PLEASE NOTE: ACC does not have access to the RCEP account of any participant, nor information on account passwords. Participants will need to contact RCEP directly at (202) 347-7474 for assistance, or can visit, enter their work email address in the log-in, and click "Forgot Password."


The registration fee for ACC on-demand webinars is “per person.” The sharing of your log-in credentials or viewing of the on-demand webinar by non-registered individuals is prohibited. Doing so will nullify the issuance of your PDH credits.


If you should have any questions pertaining to credits for this webinar, please contact us at