Following the 2001 Deaflympics in Rome, a number of UK deaf organisations and National Deaf Sport Specific Organisations appointed Crowley as Chair of the Deaf Sports Strategy Group in 2002. The following year he co-founded
UK Deaf Sport and was elected its first chair in March 2003. Under his leadership between 2003 and 2009, UK Deaf Sport secured membership of both the International Committee of Sports for the Deaf (ICSD) and the European Deaf Sport Organisation (EDSO), and oversaw the preparation of two successful Great Britain Deaflympics teams in 2005 and 2009. In 2009, Crowley became the first British citizen and Deaflympian to be elected President of the ICSD, at the organisation’s summer congress in Taipei. His presidency coincided with a turbulent period in the ICSD’s history, including the cancellation of the 2011 Winter Deaflympics in Slovakia and the 2013 Summer Deaflympics in Greece. Despite these challenges, he led the Executive Board in restoring the credibility of the Deaflympics and oversaw the staging of the 2013 Summer Deaflympics in Sofia, Bulgaria. Crowley was succeeded as ICSD President by Dr Valery Rekhledev of Russia in 2013, following the completion of his term. During his presidency, he secured agreements for the hosting of the 2015 Winter Deaflympics and 2017 Summer Deaflympics, and advanced reform proposals for the governance of deaf sport. In September 2013, the ICSD received formal commendation from the
International Olympic Committee for its leadership. He was also instrumental in securing a Memorandum of Understanding between the
World Federation of the Deaf (WFD) and the ICSD, which was formally signed in July 2013. After his presidency, Crowley established the think tank *Efficere Sports International* and has continued to advocate for closer collaboration between the Deaflympics and the Paralympics as part of a long-term international strategy for deaf athletes. ==Other work==