In this video we demonstrate what are deemed industry best practices for a climbing arborist to be secured to a spar pole when blocking/chogging down the trunk with no option for an overhead tie-in point. In this video we demonstrate options for a moving rope system (MRS) main line tie off, and a stationary rope system (SRS) main line tie-in, both methods must also be accompanied by a second point of attachment which is most commonly a lanyard or flip line, but can also be a second full length climbing rope system. The 'American National Standards' for Arboricultural operations (ANZI Z133) Section 8.1.27 states; Arborists working from a stem or spar without a suitable natural crotch shall selective-in points or a tie-in method that positively prevents the climbing line from sliding down or up or off the stem during climbing operations. Placing a climbing line around a stem in an area without a lateral limb is not acceptable unless the climbing line is cinched or chocked around the stem or runs through a double wrapped or adjustable false crotch, which is secured/cinched around the stem. The tie-in point selected shall be able to withstand the forces being applied during the pruning/removal operation. . If you like this video and want to see more like this, don't forget to subscribe to the channel and click the notification bell for all notifications when we release new content.