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.

This Technical Note will only focus on the requirements in relation to inspection of equipment and machines. But it is the responsibility of the employer to familiarise themselves with the other elements of Provision and Use of Work Equipment Regulations 1998 (PUWER) / Lifting Operations and Lifting Equipment Regulations 1998) (LOLER).

January 2023 - Chainsaw PUWER Checklist added.

December 2022 - sample machine daily and weekly inspection records now available which can be adapted to your own situation.

Chainsaw operations remain the highest risk activity within our industry.

The FISA Chainsaw Working Group has prepared guidance on the planning of chainsaw works,  for those undertaking the works, Forest Works Managers and Landowners.   This guidance has been in circulation as a working draft for comment; we now release as a final version.

September 2025 - the TN has been updated with higher quality photos; updated text around ‘when not to use a tree-jack’; and updated QR codes on final page

Advice from the Chainsaw Working Group aimed at Operators is summarised in this document. These are general guidelines and set out advice at the date of issue; they may not be relevant to your situation or site and it is necessary to use common sense when applying them. A full glossary of terms used is found at the end of the document.