Mar 3, 2011 · All escalators shall comply with ASME A17.1/CSA B44, 6.1.3.3.11, Guard at Ceiling Intersection, and the following: Guards shall be provided at any pinching, snagging or wedging points between the handrail , balustrade and adjacent building components or equipment if such points are within the clearances delineated in 6.1.3.3.11.