Indiana Code
Chapter 21. Firefighter Safety Notification
22-11-21-2. "Advanced Structural Components"

Sec. 2. As used in this chapter, "advanced structural components" means lightweight I-joists or lightweight roof trusses that:
(1) have less mass cross-sectional area than sawn lumber of equivalent proportions used in an equivalent application; and
(2) are assembled from combustible or noncombustible materials, or both.
The term does not include a structural assembly, joist, or truss that provides at least one (1) hour of fire resistance when tested in accordance with the ASTM Standard E119.
As added by P.L.104-2018, SEC.1.

Structure Indiana Code