In what scenario would you NOT need permission to fly into Class E airspace?

Flying VFR (Visual Flight Rules) below 10,000 feet in Class E airspace does not require special permission from air traffic control. Class E airspace is designated for general use and is typically less restrictive than Class A or Class B airspace. Pilots operating under VFR within this airspace can do so without prior clearance, although they must still adhere to specific visibility and cloud clearance requirements established for VFR operations.

Receiving a traffic advisory is a service that enhances safety but does not influence the need for prior permission to enter Class E airspace. Likewise, flying IFR (Instrument Flight Rules) at any altitude does involve following specific procedures and may require clearance, but the question specifically asks about scenarios where permission is not needed. Therefore, the case of flying VFR below 10,000 feet clearly aligns with the requirements of Class E airspace where direct authorization is not mandated.