The restrictions come in the backdrop of Puttingal temple tragedy in which 108 persons were killed and over 200 injured in April during a fireworks display wherein certain banned substances were used.
PESO has made it clear that during festivities, fireworks should not contain chlorate or prohibited explosives.
In a series of circulars, PESO, stated that no fireworks within 250 metres of a hospital, nursing home and schools will be allowed.
It has also prohibited possession and sale of fire crackers generating noise level exceeding permissible limits.
A minimum distance of 100 metres should be maintained between spectators and area where the display is to be carried out.
The temple festival season, including the famous Thrissoor pooram, are to be held in a couple of months.