Tentative Interim Amendment (TIA) 27-1 refers to a significant update to the 2027 Edition of NFPA 30: Flammable and Combustible Liquids Code.
Issued on April 15, 2026, with an effective date of May 5, 2026, this TIA (Log #1886) was processed by the Technical Committee on Flammable and Combustible Liquids to address safety gaps regarding the handling of ignitible liquids in specific occupancy types.
Key Changes and References
The amendment modifies several sections within Chapter 10 (Storage of Ignitible Liquids in Mercantile Occupancies) and Chapter 12 (Storage of Ignitible Liquids in Containers, Intermediate Bulk Containers, and Tanks).
- Basement Storage Restrictions (Section 10.4.1): It reinforces that Class I and Class II liquids (those with a flash point below 140°F / 60°C) are strictly prohibited from being stored, displayed, or dispensed in basements.
- Mercantile Occupancies (Section 10.18): A new subsection (10.18.3) was added to explicitly forbid the dispensing of ignitible liquids in basements of mercantile settings. An exemption exists for very small quantities (under 16 oz / 0.5 L).
- Operational Consistency: The TIA ensures that Chapters 10 and 12 align with the fundamental storage requirements found in Chapter 9, preventing “regulatory drift” between different occupancy chapters.
Why This Matters
As a TIA, this is a “tentative” amendment because it has not yet gone through the full standard revision cycle. However, it is effective immediately as part of the code because the Standards Council determined there was an “emergency nature” regarding the risk of fire and explosion when flammable liquids are handled in below-grade areas where vapors can accumulate, and egress is limited.