a. Whenever the department determines that because of any violation of this chapter or other applicable law, any dwelling or part of its premises is dangerous to human life and safety or detrimental to health, it may
(1) correct such conditions, or
(2) order the owner of the dwelling or other responsible party to correct such conditions.
b. Where the department determines that any violation of this chapter or other applicable law exists in any dwelling or part of its premises, it may order the owner of the dwelling or other responsible party to correct such conditions.
c. An order issued pursuant to the preceding subdivisions shall state the violations involved and the corrective action to be taken, and shall fix a time for compliance, which shall be not less than twenty-one days from the date of service of the order, except that where a condition dangerous to human life and safety or detrimental to health exists or is threatened, a shorter period for compliance may be fixed.
d. Any order not complied with within the stated time for compliance may be executed by the department. Where a multiple dwelling has been declared a public nuisance pursuant to section 27-2114 of article one of this subchapter, and an order to correct the conditions constituting the nuisance has not been complied with, the department shall execute the order pursuant to this subdivision or institute proceedings pursuant to article six of this subchapter.