Table 1: Session Outline for the ARM-U Intervention

Session	Delivery Mode	Content of Session
1	In-person	Baseline Assessment (ACASI) Rapport building Identify participant risk factors Module 1 - Context of Unsafe Sex and Meth use Module 2 - IDU-Related Risk of HIV and Injection Cross-Contamination Video (if applicable) Module 6 - Referrals and Case Management Make referrals to local service providers as needed
2	Telephone	Follow-up on client-identified goals Follow-up on referrals Re-establish or support continued motivation for change
3	Telephone	Follow-up on client-identified goals Follow-up on referrals Re-establish or support continued motivation for change
4	In-person	Module 3 - Safer Sex Negotiation Module 4 - Disclosure of HIV Status (positive or negative) Module 6 - Referrals and Case Management
5	Telephone	Follow-up on client-identified goals Follow-up on referrals Re-establish or support continued motivation for change
6	In-person	Module 5 – Enhancements of Social Supports Module 6 - Referrals and Case Management