The comprehensive multi-year plan (cMYP) is a single plan which consolidates several immunisation activities. It is a key planning and management tool for national immunisation programmes. It addresses global, national, and subnational immunisation objectives and strategies, and evaluates the costs and financing of the programme in line with the WHO-UNICEF Global Immunization Vision and Strategy 2006-2015. GAVI requires countries to submit a cMYP along with the standard proposal form when applying for GAVI support (ISS, INS, and NVS). In 2006, over 50 countries had developed cMYPs using the WHO-UNICEF cMYP guidelines and costing tool. The cMYP replaces the financial sustainability plan (FSP), used to assess the funding challenges of a country's national immunisation programme within the broader health financing context and to describe the government’s approach to mobilising and effectively using resources to support medium- and long-term immunisation objectives.