Final answer:
The permit application for equipment replacements and repairs in an emergency must be submitted within a specified short timeframe, often 24-48 hours after the work begins, depending on local regulations.
Step-by-step explanation:
When equipment replacements and repairs must be performed in an emergency situation, the permit application shall typically be submitted within a specified timeframe according to the jurisdiction's regulations. Generally, this timeframe is meant to be as soon as practically possible, usually within 24 to 48 hours after the emergency work begins. However, the exact timeframe can vary and should be verified with the local authority having jurisdiction (AHJ) overseeing the permitting process. Failure to submit a permit application within this timeframe may lead to penalties or fines.