Here is the latest version of the professional handbuch of "pilot Ladder Safety" for the rigging and the use of pilot ladders by Herman Broers from July 2021.
by Arie Palmers, Netherlands - published on 10 January 2020
From that moment on I have been keeping a tally of the non compliant boarding arrangements I see in front of me on a daily base, and off course I participate in the annual safety campaign, conducted by IMPA each october.