This brief discusses how California's System of Support uses differentiated assistance (DA) to provide support to districts and boost student group performance levels. It analyzes the districts eligible for DA in 2019 based on their students with disabilities' (SWD) performance on State Priority Areas (SPAs) and indicators. The findings show that over half of the 333 eligible districts were driven by SWD performance in SPAs 4 (Pupil Achievement) and 5 (Pupil Engagement), highlighting intersectional challenges facing SWD that districts can address through their continuous improvement process.