- Draft status: The March 2026 guidance is a draft. The FDA may revise the final guidance based on public comments. No final publication date has been announced.
- Flavor taxonomy: The FDA does not publish an official flavor taxonomy for authorized products. Flavor categorizations are inferred from product names, FDA press releases, and industry reporting.
- DAR precedent limited: The Glas G2 is the only DAR-authorized product. Whether DAR will be sufficient for other manufacturers' products remains uncertain — the draft guidance itself is cautious.
- Enforcement gap: The FDA's enforcement priorities guidance creates a gray area where unauthorized products with pending PMTAs may be sold without prioritized enforcement. This is not the same as authorization.
- No final guidance: As of September 2026, the draft remains under FDA review. All analysis is based on the draft, which may change.
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