If an OSP designer's change estimate is not within what percent, confer with client and contractor to realize the difference?

Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

In OSP design change management, cost estimates for changes are kept to a chosen tolerance so small variances don’t trigger all the formal approvals. If the anticipated cost impact of a change does not stay within that tolerance, it’s necessary to confer with the client and the contractor to understand and resolve the difference before proceeding. The 10% threshold is used because it catches meaningful shifts in cost without slowing progress for minor fluctuations, while still ensuring the client is aware and on board for larger, potentially impactful changes. If the difference stays within this margin, smaller adjustments can typically be managed without full change orders; beyond it, formal discussion and agreement are prudent.