Whether you need to communicate in Class E airspace depends entirely on whether you are flying under Visual Flight Rules (VFR) or Instrument Flight Rules (IFR). For VFR pilots in 2026, there is no requirement for two-way radio communication or an ATC clearance to enter or operate within Class E airspace, provided you maintain basic VFR weather minimums (typically 3 miles visibility and specific cloud clearances). However, for IFR pilots, Class E is "controlled" airspace where an ATC clearance and continuous two-way radio communication are mandatory. While VFR pilots aren't required to talk to anyone, it is a high-fidelity "best practice" to utilize "Flight Following" services if available, especially when transiting high-fidelity transition areas or Victor Airways. It is also important to remember that while the airspace itself doesn't require communication for VFR, you must still comply with any ADS-B Out or transponder requirements that apply to the altitude or location where the Class E exists.