notice, that prompt action to correct the violation has been taken but that full correction cannot be completed within the time provided because of serious technical difficulties, inability to obtain necessary materials, funds or labor, inability to gain access to the dwelling unit wherein the violation exists, or such other portion of the building as may be necessary to make the required repair. Such postponement shall not exceed fourteen days from the date of correction set forth in the notice of violation. The department may require such other conditions as are deemed necessary to insure correction of the violations within the time set for the postponement. The department may grant one additional postponement of no more than fourteen days for the reasons authorized by this section so long as the paint or other condition which is the subject of the violation has been stabilized. The department is also authorized to promulgate rules establishing criteria for a postponement of the time to correct for a longer period of time where such postponement is requested because of one or more substantial capital improvements will be made that will, when completed, significantly reduce the presence of lead-based paint in such multiple dwelling or dwelling unit including, but not limited to, a requirement that the paint which is the subject of the violation is stabilized. The department shall provide to the owner and the occupant a written statement signed and dated by the person making such decision setting forth the reasons for each postponement of the date by which a violation shall be corrected or the reason for the denial of such application for a postponement. Said written statement shall be part of the records of the department.