Underwater blasting.
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Firing the blast.
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Use of detonating cord.
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Use of safety fuse.
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Selective demolition by explosives.
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Selective demolition by explosives shall be conducted in accordance with the applicable sections of subpart U of this part.
Mechanical demolition.
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Removal of steel construction.
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Manual removal of floors.
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Removal of walls, masonry sections, and chimneys.
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Removal of materials through floor openings.
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Any openings cut in a floor for the disposal of materials shall be no larger in size than 25 percent of the aggregate of the total floor area, unless the lateral supports of the removed flooring remain in place. Floors weakened or otherwise made unsafe by demolition operations shall be shored to carry safely the intended imposed load from demolition operations.