If you find a 2017 design number online, look it up in the current UL Product iQ . If it is still active, UL will show it. If not, the design has been withdrawn or modified. Never build from an obsolete design.
The directory is traditionally divided into two primary volumes, each focusing on specific assembly types tested under standards like or UL 263 . ul fire resistance directory 2017 pdf
| Issue | What It Means for You | | :--- | :--- | | | The 2017 edition does NOT reflect design changes, withdrawn designs, or new testing from 2018–present. Do not use it for new construction permits. | | Code Cycle | This directory aligns with legacy codes (e.g., IBC 2015, NFPA 101 2015). Most jurisdictions are now on IBC 2018, 2021, or 2024. | | PDF Availability | UL no longer freely distributes full annual PDFs. They have moved to a paid online database (UL Product iQ). Finding a legitimate 2017 PDF is difficult. | If you find a 2017 design number online,
If you are working with an older building code, verifying a legacy design, or performing forensic analysis on a structure built before 2018, you may need the . Never build from an obsolete design
the 2017 edition is useful, but treat it as a reference – not a construction specification – unless the design is still actively listed by UL today.