What this framework is
Rule 506(c) is the post-JOBS-Act exemption that permits general solicitation of a private offering — public marketing, website fundraising pages, newsletters, social posts — subject to two key tradeoffs: every investor must be accredited (no 35-non-accredited carve-out), and the sponsor must take reasonable steps to verify accredited status (third-party letter from a CPA, attorney, or registered broker-dealer, or review of tax returns / statements).
The framework has become the dominant exemption for sponsors who raise from a broader audience than their immediate network.