The French nuclear test veterans organisation AVEN has written an open letter to the French president asking him to show political courage and modify the 2010 law compensating test victims.
The letter asks Francois Hollande to engage himself personally, reminding him that before he assumed power he objected to the law.
After claiming for decades that its tests were clean, France adopted the law to compensate nuclear test veterans for the consequences of its weapons tests between 1960 and 1996 in French Polynesia and Algeria.
But the veterans as well as politicians and churches in French Polynesia have repeatedly expressed their dismay at the law, saying it is too restrictive.
An estimated 150,000 military and civilian personnel were involved in the weapons testing regime.