||This is a practical guide, prepared by Craig Sinclair, World Health Organization (WHO), intended for government health authorities, to assist them in the development of public health policy in relation to sunbeds. In general, sunbeds predominantly emit UVA radiation, which is thought to be the least damaging of the UV radiation spectrum. However in recent years, sunbeds have been manufactured that produce higher levels of UVB to mimic the solar spectrum and speed the tanning process. Overexposure to UV radiation from the sun and artificial sources is of considerable public health concern. UV radiation plays an important role in the development of skin cancer, cataracts, and other eye conditions, and suppresses the immune system. Cumulative UV radiation also results in premature skin ageing. Estimates from the WHO show that sun exposure may have been a key contributor to the development of cataracts in up to 20% of people who have cataracts. While WHO does not recommend the use of UV tanning devices for cosmetic purposes, it is recognized that sunbeds continue to be available to the public. For this reason there is a need for guidance to reduce the risks associated with their use.