USA Wrestling made a video, "2026 Rules Modification", clarifying this rule and other new rules. Starting at 15:42 in the video the Step Out In Grounded Position is explained along with numerous video examples from UWW matches. Here are some highlights from the video:
-- A step out point can only be awarded if the wrestlers start on their feet, one or both wrestlers go down to one or both knees (parterre position) with no points scored in the sequence, and then the opponent of the wrestler who goes out of bounds first will be awarded a step out point
-- If points are scored in the process of going to the mat or if parterre points are awarded, then any subsequent step out in the wrestling sequence will not result in a point
-- Once the wrestlers get to a standing, facing position (whether from a restart or both wrestlers getting back to a neutral position on the mat), then the possibility for a step out point will resume
-- A wrestler can have both his knees and feet outside the cylinder and not be called for a step out. Their chest and "pinning points" also have to be outside the cylinder before a step out point is awarded. See the two photos below for clarification. It is not until the wrestler's upper body goes outside the cylinder (second photo) that a step out point would be awarded:
-- No step out points will be awarded if a wrestler pushes their opponent off the mat. The example given is where a wrestler extends both arms out and uses their palms to shove their opponent off the mat. Several video examples are included in the video.
On an unrelated note, in FS you are now allowed to step on an opponent's foot.
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