FAA1.B Time Frames : 09 Untimely Reason Codes - Overview : C Untimely Reason Codes - Good Cause (UC)
C Untimely Reason Codes - Good Cause (UC)
Key the following code when the determination is untimely but good cause applies:
 
‚óŹUC. Key UC when the delay is due to one of the following unusual circumstances:
The office was closed due to an environmental condition, such as weather, power outages, or unsafe condition.