CATSO members are professionals with a Master's Degree or above in a clinical field of study who performed at least 1,000 hours of supervised clinical practice involving both assessment and treatment of sexual offenders. Supervision must be provided by professionals with recognized expertise in assessing and treating sexual offenders. Members are considered qualified to independently provide specialized assessment and treatment services in the community, and are encouraged to identify their CATSO membership to the public.

Commonly asked Questions:


Is Clinical Membership in CATSO equivalent to certification?

No. Clinical Membership in CATSO is not a certification or license. Clinical Membership in CATSO means only that you have satisfied the requirements for independent practice of specialized sex offender treatment as established by this organization. While some state agencies (e.g., the Judicial Department's Community Support Services Division and the Department of Children & Families) recognize this membership as evidence of clinical competence in this area, membership in the organization is not a form of certification.

Is there a cost for membership?

Yes. Annual dues are assessed. Current dues are $125.00 per annum.

Does CATSO provide training opportunities to professionals in the field?

Yes. CATSO sponsors many training opportunities for professionals in the field, ranging from morning workshops, to day-long or multi-day conferences, which may be co-sponsored with other organizations, such as the Court Support Services, Connecticut Alliance to End Sexual Violence, Department of Correction and other stakeholders in Connecticut.

For Membership Renewal, please fill out and submit the form and fee.   


Applications to become a CATSO Member please completion the following three documents:

See links below:

  1. 2019_MembershipApp56435.docx
  2. Reference Form
  3. Department of Public Safety


CATSO Membership Committee

Attention:  Dr. Lothstein

68 South Main Street 

West Hartford, CT  06109