This document is a guide that describes the SGS AI Trust Check, an online self-assessment tool designed to help organizations evaluate the alignment of their AI systems with current regulations and industry best practices. It outlines the tool's purpose, which is to assist users in understanding their AI governance, compliance readiness, and risk management maturity within a timeframe of 15 to 30 minutes. The guide details how the tool supports compliance with various standards, including the European Union Artificial Intelligence Act and the ISO/IEC 42001 standard. It explains the structured questions used to assess key aspects of responsible AI, such as data use, governance, and risk management. Additionally, the document identifies the target audience for the tool, including AI developers, business leaders, and compliance managers, and highlights the benefits of completing the self-assessment, including personalized reports and recommendations for improvement.