2611 Light-Transmitting Plastic Interior Signs — 2025 California Building Code
California Building Code (Title 24, Part 2) · 2025 edition · updated 2026-10-19 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Building Code (Title 24, Part 2) § 2611 · Effective January 1, 2026 · Official source: Building Standards Commission
2611.1 General.¶
Light-transmitting plastic interior signs shall be limited as specified in Sections 2606 and 2611.2 through 2611.4.
Exception: Light-transmitting plastic interior wall signs in covered and open mall buildings shall comply with Section 402.6.4.
2611.2 Maximum area.¶
The aggregate area of all light-transmitting plastics shall not exceed 24 square feet (2.23 m [2] ).
Exception: In buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1, the aggregate area of light-transmitting plastics shall not exceed 100 square feet (9.29 m [2] ), provided that all plastics are Class CC1 in accordance with Section 2606.4.
2611.3 Separation.¶
Signs exceeding the aggregate area of Section 2611.2 shall be separated from each other by not less than 4 feet (1219 mm) horizontally and 8 feet (2438 mm) vertically.
2611.4 Encasement.¶
Backs of wall-mounted signs and non-illuminated portions of all signs regulated by this section shall be fully encased in metal.
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