IL SB3531

Expands trauma center designations from 2 levels (Level I and II) to 3 levels by creating Level III Trauma Centers with less stringent requirements than Level I and II centers.

Creates "Acute Injury Stabilization Centers" as a new facility type with basic or comprehensive emergency departments capable of initial management and transfer of acutely injured patients.

Requires Level II and Level III Trauma Centers to have some essential services available in-house 24 hours per day and other essential services readily available, with reduced requirements compared to Level I centers.

Authorizes the Trauma Center Medical Directors Committee to consider Level III Trauma Centers when identifying types of facilities for patient care.

Establishes minimum standards for designation and re-designation of all three trauma center levels based on national standards, with onsite inspections conducted every 4 years instead of after each 2-year renewal.