Your May 18 letter to Mr. Jim Knorpp, the Occupational Safety and Health Administration (OSHA) Area Director for Fort Worth, was forwarded to this office for response. I apologize for the delay in replying to your inquiry as to OSHA's interpretations of the terms certified and qualified as used in ANSI standards for aerial lifts.
Pole bending. Pole bending is a timed event that features a horse and one mounted rider, running a weaving or serpentine path around six poles arranged in a line.
A ground pole is one that lies directly under the jump on the side it is being jumped from and gives the horse a base line in which to judge the bottom of the fence from. 1  A line of trot poles are placed to lead the horse up to the fence.  A line of canter poles are placed to lead the horse up to the fence.