"With AirVenture on hiatus last year, it is more crucial than ever to thoroughly read and understand the 2021 AirVenture NOTAM to ensure safe operations on arrival and departure for this year's event. We also urge all pilots to log appropriate cross country time prior to their trip to Oshkosh so they have the proficiency and confidence to fly safely in conjunction with a thorough knowledge of this year's NOTAM."
Source: Sean Elliott, EAA's vice president of advocacy and safety, discussing the publication of the 2021 AirVenture/Oshkosh NOTAM.