The J. J. Keller & Associates, Inc. North American Standard Out‑of‑Service Criteria Handbook and Pictorial Edition 2026 is an essential reference for motor carriers enforcement agencies safety professionals and drivers preparing for roadside inspections. Published by CVSA this handbook identifies critical vehicle inspection items and details conditions that can place a motor carrier or operator out of service until corrected. The 2026 edition is effective April 1 2026 through March 31 2027 and includes a full set of CVSA inspection schematics covering Level I inspections passenger vehicles hazardous materials cargo tanks bulk packaging ABS inspection procedures for Canadian and U.S. field reference performance‑based brake testing and Mexican CDL requirements. This edition incorporates emergency updates including enforcement guidance regarding English language proficiency requirements effective June 25 2025 as well as major technical revisions addressing brake hose chafing thresholds steering system free play limits standardized synthetic webbing strap criteria EV battery coolant leaks and updated suspension air spring mounting requirements. Spiral bound for ease of use this pictorial handbook is designed to improve compliance consistency enhance safety and support confident roadside inspection readiness.