This section is a great idea, thanks. LIs have lots of requirement information that is not captured elsewhere.

LI #2500 concerns mixed use buildings that are primarily residential but have a relatively small amount of commercial with respect to bikes and showers requirements. The original ruling (along with a few others that were similar) set an implied threshold at 10% of gross area for having to supply a shower for commercial space. This specific case, however, was based on a 1% situation and the USGBC elected to modify this LI to narrow its scope to be less than 1%.

However, they also issued #10209 in tandem to further clarify:
" If the total nonresidential square footage of a mixed-use building is less than 10% and no greater than 5,000 square feet, it is acceptable for the nonresidential use to be excluded from the shower requirements for SSc4.2: Bicycle Storage and Changing Rooms. However, each use component of the building must still comply with the bicycle storage requirements of this credit."

We have lots of apartment buildings with minor groundfloor retail in our area, so not having to provide a shower is fairly significant to us.