The Society is affiliated with the National Historical Machinery Association Inc. (NHMA), and operates under their safety guidelines.  A copy of the guidelines is available to all members.  NHMA Guidelines.

All current financial members of the Society are insured for public liability under the NHMA, and an insurance fee is included in the members annual subscription.  Members should always be able to show a current Public Liability Insurance card on request at any rally or other event where they are responsible for machinery