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5.2 Special moment-resisting steel frames. During the welding of special moment-resisting steel frames. In addition to Item 5.1 requirements above, nondestructive testing as required by Section 1703 of this code. 5.3 Welding of reinforcing steel. During the welding of reinforcing steel. EXCEPTION: The special inspector need not be continuously present during the welding of ASTM A 706 reinforcing steel not larger than No. 5 bars used for embedments, provided the materials, qualifications of welding procedures and welders are verified prior to the start of work; periodic inspections are made of work in progress; and a visual inspection of all welds is made prior to completion or prior to shipment of shop welding. 6. HIGH STRENGTH BOLTING. As required by Chapter 22, Division IV. Such inspections may be performed on a periodic basis in accordance with the requirements of Section 1701 . 6. ( ) 7. STRUCTURAL MASONRY. 7. 1 For masonry, other than fully grouted open-end hollow-unit masonry, during preparation and taking of any required prisms or test specimens, placing of all masonry units, placement of reinforcement, inspection of grout space, immediately prior to closing of cleanouts, and during all grouting operations. EXCEPTION: For hollow-unit masonry where the f'm is no more than 1, 500 psi (10.34 MPa) for concrete units or 2, 600 psi (17 .93 MPa) for clay units, special inspection may be performed as required for fully grouted open-end hollow-unit masonry specified in Item 7 .2 below. 7 .2 For fully grouted open-end hollow-unit masonry during preparation and taking of any required prisms or test specimens, at the start of laying units, after the placement of reinforcing steel, grout space prior to each grouting operation, and during all grouting operations. EXCEPTION: Special inspection as required in Items SIA.DOC 3 -