Which type of appraisal can have its scope reduced by an average of 1/3 following a Benchmark appraisal?

The type of appraisal that can have its scope reduced by an average of one-third following a Benchmark appraisal is a Sustainment appraisal. A Sustainment appraisal is typically conducted following a Benchmark appraisal to monitor and verify that an organization's process improvements and capabilities are being maintained over time.

During a Benchmark appraisal, an organization assesses its processes against benchmark standards, and as a result, areas of improvement may be identified, allowing them to streamline future evaluations. Since the Sustainment appraisal focuses on verifying ongoing adherence to improved processes, the scope can often be reduced significantly—often around one-third—because the appraisal can concentrate on those areas that may require further oversight or have had recent changes, rather than needing a comprehensive evaluation of all processes.

This reduction in scope allows organizations to allocate resources more efficiently while still ensuring that they maintain compliance with established process standards.