Non-Redundant Steel Tension Member (NSTM) Inspections are limited to the areas under tension and/or areas subject to stress reversals in steel non-load path redundant members . These inspections are typically performed every 24 months but can be performed more frequently if conditions warrant. An NSTM Inspection is a hands-on (within arm's length of the component) inspection of a fracture critical member or member components. It may include visual and other nondestructive evaluation (NDE). NDE Methods may include dye penetrant, magnetic particle, or ultrasonic techniques. With the transition from the Coding Guide to the Specification for the National Bridge Inventory (SNBI) in accordance with 23 CFR 650.311, the collection and use of certain SNBI data is required to establish inspection intervals and to update and implement the reduced inspection interval policies by June 6, 2024. Prior to SNBI data collection, TxDOT will use equivalent criteria per the Coding Guide to determine the reduced interval inspection criteria. The equivalent criteria is provided later in this section.