Upon inspection of the electrical wiring of any building, the Electrical Inspector shall leave a notice in the form of a tag or label attached to the service. This notice shall clearly state whether the wiring is approved or is to be kept open for correction, and no person shall lath, ceil, or in any manner conceal any electrical wiring until he is informed and knows that such wiring has been approved by the Electrical Inspector.  The general contractor or owner shall be held responsible for any violations of this section.  It shall be of the duty of the Electrical Inspector to immediately notify the electrical contractor by telephone of any defects, and all defects must be corrected within 24 hours from the notice.  If, after a permit is issued, the work installed under such permit does not comply with the requirements of this subchapter, the inspector shall refuse to issue a certificate of inspection.
(`83 Code, § 5-315)