"The OBC indirectly defines acceptable performance through compliance with the Division B acceptable solution requirements or through an alternative solution that “will achieve at least the minimum level of performance required by the applicable acceptable solutions in respect of the objectives and functional statements attributed to the applicable acceptable solutions.” The minimum required level of performance is not clearly defined and often necessitates a comparative approach for alternative solutions.
This presentation is intended to discuss approaches to establishing the minimum level of performance of acceptable solution requirements, the pitfalls of the comparative approach, and strategies that can be used by reviewers of alternative solutions to address these pitfalls."