Updated - September 2026

This Technical Note has been revised to redefine the chainshot risk/exclusion zone from a flat 70m minimum to the greater of 90m, the manufacturer's risk zone, or two tree lengths plus boom length, with slope now an explicit factor.

V5 and example chainsaw operator log book.

FISA received a query from an FWM responsible for a site with active felling of woodland adjacent to a trunk road. 

The response outlines that site planning must take place to ensure that the tree works keep within the wood where possible, and the traffic management plan and roadside safety measures are developed and also put in place.

FISA are presenting a great new online resource for the sector – aimed at new entrants who have HGV experience – but maybe who have not previously driven in Forest conditions.