The MHPSS MSP is a resource for humanitarian actors who plan, support, coordinate, implement and evaluate activities within and across sectors. These include government actors, MHPSS Technical Working Groups (TWGs), national and international non-governmental organizations (NGOs), civil society and other advocacy groups, Red Cross and Red Crescent networks, UN agencies, coordinators of sectors/clusters/AoRs and donors. The MHPSS MSP informs the development and implementation of humanitarian response planning processes and documents including Humanitarian Needs Overviews, Humanitarian Response Plans, Refugee Response Plans, cluster strategy development and specific donor funding calls and mechanisms. The MSP builds on existing MHPSS standards and tools to create a single, easy-to-follow intersectoral package. It encompasses a wide range of activities that can be implemented by staff and volunteers with diverse backgrounds, qualifications and levels of experience. While standards, guidelines and tools for MHPSS have been developed, there is a recognized need for an intersectoral costed package to operationalize these guidelines and standards.