PARTNER STATES

California

OVERVIEW

In California, the Department of Health Care Services and the Office of the California Surgeon General led ACEs Aware, a first-in-the-nation, statewide effort to implement screening for Adverse Childhood Experiences (ACEs) in an effort to treat toxic stress and improve the health and well-being of Californians.

ACEs Aware offers clinical teams training, clinical protocols, and payment for screening children, adolescents, and adults for ACEs – representing the largest coordinated clinical implementation of the prevention and treatment of toxic stress in the United States.   In 2021, the ACEs Equity Act expanded ACE screening requirements beyond Medi-Cal to all health care plans in California providing coverage for pediatric services and preventative care.

IMPACT METRICS

ACEs Aware quarterly report.

Data as of March 2026

53,580+

Individuals have completed the ACEs Aware training

5,235,280+

ACE screenings conducted by Medi-Cal Clinicians

2,878,420+

Medi-Cal members have been screened

RAND evaluation of ACEs Aware.

Evaluation Report

The evaluation findings from California clinics showed that ACE screening is feasible, is acceptable, and benefits patients.

90%

Clinicians participating in training say they’re still screening 6 months later

3 of 4

Clinicians report the screening is already having a positive impact on the people they serve

85%

Clinicians screening who report paying closer attention to their patients’ trauma histories

0

Lasting adverse effects

MILESTONES

The progress so far.

  • 2016

    Proposition 56

    California voters approve tobacco tax increase, creating a dedicated funding stream for preventative health services including trauma and developmental screenings.

  • 2017

    Assembly Bill 340

    California establishes framework for trauma screening in Medicaid and convenes expert workgroups to develop protocols.

  • 2019

    Creation of the Office of the California Surgeon General

    Governor Newsom established the Office of the California Surgeon General (CA-OSG) and appointed Dr. Nadine Burke Harris as California’s first-ever Surgeon General, with ACEs and toxic stress reduction as a central mandate. Dr. Burke Harris set the goal of cutting ACEs and toxic stress in California by half in one generation.

  • 2019

    ACEs Aware Launch

    Department of Health Care Services and Office of the California Surgeon General launch the nation's first statewide clinical ACE screening initiative with provider training and Medi-Cal reimbursement.

  • 2020

    Clinical Implementation Begins

    Healthcare providers across California start screening patients for ACEs with state-supported protocols and payment structures.

  • 2020-2022

    Network of Care Grants

    Beginning in 2020, ACEs Aware awards 210 grants totaling $64.5 million to organizations statewide to augment the state of California’s work on the ACEs Aware initiative.

  • 2021

    The ACEs Equity Act (SB 428)

    California expands ACE screening coverage to all health plans providing pediatric and preventative care, reaching beyond Medicaid to all insured Californians.

  • 2022

    CalAIM Launch

    California launches CalAIM - a multiyear Medi-Cal transformation initiative to build a more coordinated, person-centered, and equitable health system that works for everyone. This initiative integrates ACEs response into Enhanced Care Management (ECM), community supports, and the Community Health Worker (CHW) benefit.

  • 2023

    Safe Spaces Training Launch

    California launches a free, online training designed to help individuals working with children and youth to help young people experiencing an overactivated stress response feel safe, secure, and ready to engage so they can thrive in the classroom and beyond.

  • 2024

    Live Beyond Campaign Launch

    California launches a statewide ACEs and toxic stress campaign as part of the Children and Youth Behavioral Health Initiative (CYBHI) developed “with youth, for youth” to increase awareness and provide youth, young adults, and those who support them with resources and strategies to heal from adversity and end cycles of trauma.

  • 2024

    RAND Evaluation of ACEs Aware

    RAND, in an independent evaluation, finds ACEs Aware has made substantial early progress with key learnings like: ACE screening is feasible, is acceptable, and benefits patients as well; training has increased clinician knowledge and skills; and, ACEs Aware has helped clinics build a strong foundation in trauma-informed health care. Present: National Model - California's comprehensive approach serves as a blueprint for other states implementing trauma-informed systems change strategies and public health solutions.

LOCAL PARTNERS

Rooted in one purpose, grounded in collaboration.