The Association for the Advancement of Cost Engineering (AACE) provides internationally recognized standards for cost estimation and project control. AACE estimate classifications range from Class 5 (conceptual) to Class 1 (definitive), each serving specific project phases and decision-making needs.

Understanding AACE estimating practices is crucial for accurate budgeting, risk assessment, and project planning. This tag covers best practices in developing reliable cost estimates, improving estimate accuracy, and applying AACE methodologies to ensure your projects stay on budget from conception through completion.