The document summarizes the results of a 18-month intervention to improve family planning service uptake at HIV care and testing sites in Tanzania. The intervention focused on strengthening the supply chain system for family planning commodities. It found that regular supportive supervision, capacity building on supply chain management, and strategic meetings improved ordering rates from 12.5% to 100%, stock monitoring from 70% to 90%, and use of logistics reporting tools. Overall, family planning uptake among people living with HIV increased from 16% in 2012 to 74% in June 2015 due to the more stable commodity supply system. The intervention engaged local health managers and partners to sustainably address supply chain challenges.