This guidance is intended for use by clinical commissioning groups (CCGs) to support them in commissioning fertility services for their local population and implementing the NICE guidelines on fertility treatment. It is produced by the Human Fertilisation and Embryology Authority (HFEA), the national regulator of fertility clinics, in conjunction with the main professional bodies, British Fertility Society, Association of Clinical Embryologists, Royal College of Obstetricians and Gynaecologists, and Royal College of Nursing to assist CCGs in using available resources to make evidence-based clinical commissioning decisions.