You can be paid a Disability Grant if you are over the age of 18 years and are not able to work because of a mental and/or physical disability. It can only be awarded on the basis of a medical doctor's certificate. The Disability Grant varies but the maximum amount that can be awarded is R1140 a month (April 2011). The amount is calculated on a sliding scale, so that the more you earn, the less you will get from the grant. You get a permanent Disability Grant if your disability will continue for more than a year and a temporary Disability Grant if your disability is expected for a continuous period of not less than six months and not more than twelve months. A permanent Disability Grant does not mean you will receive the grant for life as it will need to be periodically reviewed. A permanent Disability Grant is usually given for more than a year.  A temporary Disability Grant is usually given for a period of six months after which a review must be done. A temporary Disability Grant can be given to people suffering from AIDS if a doctor deems the person is unable to work.