D.C. Municipal Regulations (Last Updated: September 13, 2017) |
Title 24. PUBLIC SPACE AND SAFETY |
Chapter 24-32. OCCUPATIONAL SAFETY: WINDOW CLEANING |
Section 24-3206. ANCHOR INSTALLATIONS: WOOD
Latest version.
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3206.1In wood construction, anchors, bolts, and other approved fittings shall be securely fastened to the window frame or mullion in accordance with this section.
3206.2Two (2) through bolts having a diameter of not less than three-eighth inches (3/8 in.) that is made from the same material as the anchor shall pass through the entire window frame or mullion to secure each anchor. The through bolts shall be securely fastened by a washer and nut.
3206.3The ends of the through bolts required by §3206.2 shall be upset to prevent loosening or removal of the nuts.
source
Section 11-2530(a), effective September 1, 1958, ch. 25, 5 DCR 28 (August 11, 1958); 11B DCRR, Special Edition.