What are the standard IFR alternate minimums for a precision approach?

The standard IFR alternate minimums for a precision approach are 800 feet ceiling and 2 statute miles visibility. This means that when selecting an alternate airport for a flight under IFR (Instrument Flight Rules), pilots must ensure that the alternate has at least these minimums available at the time of arrival in order to be considered suitable.

The rationale for these specific minimums relates to the precision of the approach procedures available at that airport. Precision approaches, such as those using the Instrument Landing System (ILS), provide a more accurate and reliable means of landing, which is critical in low visibility conditions. The ceiling and visibility requirements reflect the reduced risk associated with precision approaches.

In contrast, the other options present different minimums that pertain to locations where non-precision approaches may be used or are in line with other classifications of airports and approaches. Thus, they do not meet the specific criteria established for precision approaches, which necessitate the standards set at 800 feet and 2 statute miles for safe operations.