For competition the area of the landing zone shall not be less than 6 m (length) x 4 m (width) x 0.7 m (height). High jump mats not less than 5 m (length) x 3 m (width) x 0.7 m (height) are permitted for competitions and training. When replacing the high jump mat, a high jump mat of at least 6m (length) x 4m (width) x 0.7m (height) is strongly recommended. Until 2028, high jump mats with a height of 0.6m are tolerated.