ANSI/TPI 1-2022 has added a new person loading check in Section 6.2.2.5 to represent the occurrence of a person on the chord of a truss. The provision was introduced to enhance safety by ensuring that truss chords can support a worker during temporary in-service conditions, such as access for maintenance or installation activities. In February 2026, the TPI Technical Advisory Committee (TPI TAC) issued a Technical Interpretation for this new provision which clarified how it should be applied. It is important for truss technicians and truss designers to understand this provision, and the Technical Interpretation, and the potential impact it may have on truss designs. In some instances, the provision may control the design of a truss chord resulting in larger member sizes, or smaller panel lengths than previously required