If the initial check (phase one) of a building shows substantial structural deterioration, a more detailed follow-up inspection (phase two) is needed. This second stage might include tests that either involve destructive or nondestructive testing based on what the inspector thinks is necessary. This phase may be as extensive or as limited as necessary to achieve the goal of finding any and all signs of structural distress, ensuring the building is structurally sound and safe for its intended purpose and to recommend a program for fully assessing and repairing distressed and damaged portions of the building. The inspector will give preference to test areas that cause the least disruption and are easiest to repair, while still being representative of the structure and condition. If a phase two inspection is required, the responsible architect or engineer must, within 180 days of the phase one inspection report, inform the local authorities of their progress and when they expect to finish the phase two inspection. After completing phase two inspection, the inspector must write up their final report and submit it to the local enforcement agency.