Safety Standard of Machinery, Equipment and Tools Article 61
A riving knife of the anti-kickback device (hereinafter referred to as the riving knife) or a teeth-contact preventive device shall meet the following provisions:1. The installation of the riving knife and the teeth contactpreventive device must be in the condition that the longitudinal cross section plane formed by their longitudinal cross section planes containing their longitudinal center lines and the longitudinal cross section plan containing the longitudinal center line of the blade are always on the same plan.2. The gap between the riving knife and the top of that opposite blade teeth is less than 12 millimeters.
中文原文 機械設備器具安全標準第61條
反撥預防裝置之撐縫片（以下簡稱撐縫片）及鋸齒接觸預防裝置之安裝，應符合下列規定：
一、撐縫片及鋸齒接觸預防裝置經常使包含其縱斷面之縱向中心線而和其側面平行之面，與包含圓鋸片縱斷面之縱向中心線而和其側面平行之面，位於同一平面上。
二、木材加工用圓盤鋸，使撐縫片與其面對之圓鋸片鋸齒前端之間隙在十二毫米以下。
一、撐縫片及鋸齒接觸預防裝置經常使包含其縱斷面之縱向中心線而和其側面平行之面，與包含圓鋸片縱斷面之縱向中心線而和其側面平行之面，位於同一平面上。
二、木材加工用圓盤鋸，使撐縫片與其面對之圓鋸片鋸齒前端之間隙在十二毫米以下。