Accreditation of healthcare services provides quality assurance of hospital practice to support safe and effective care for patients. Accreditation programmes focused on antimicrobial stewardship (AMS) have been developed in high-income countries (HIC) and recently the WHO has developed a toolkit to support AMS practice in low and middle-income (LMIC) countries. BSAC has developed their Global Antimicrobial Stewardship Accreditation Scheme(GAMSAS) for hospitals based on globally applicable standards. GAMSAS aims to support healthcare organizations to build measurable AMS programmes and to support spread of best practice. GAMSAS involves a desktop assessment by BSAC experts followed by a hospital visit to gather further insight into how a hospital's AMS programme operates. A final report of compliance with the GAMSAS standards and a recommendation about accreditation at one of three levels is formally approved at a GAMSAS panel meeting involving well-established global experts in AMS. The BSAC GAMSAS team reflect on progress during the first year and ambitions for future spread.