Update: LEEDuser has heard from a LEED expert that GBCI instructed their project to exclude parking spots specifically designed for motorcycles when counting the total number of parking spots. That would exclude motorcycle parking from the requirements of SSc4.3, SSc4.4, and Option # 2 of SSc7.1. We would like to confirm this, but in the meantime are noting this information on this FAQ, and also retaining the text of our previous FAQ below.

Prior to this information the FAQ read as follows:

Fleet vehicle and storage spaces—for example, spaces for school buses, military vehicles, rental cars, or tractor trailers—are not counted in the number of total parking spaces, but commuter spaces are counted, including those dedicated to atypical vehicles such as motorcycles.

According to GBCI, an "atypical" vehicle used for commuting, such as a motorcycle, should be counted the same as a "standard" passenger car parking space.  The amount of preferred parking provided should be distributed evenly among the various parking space types.

For example, if 40% of the project’s parking is for motorcycles, 60% of the total parking is for standard passenger vehicles, and 10 preferred spaces are required to earn the credit, the preferred spaces should be distributed such that four preferred spaces (40%) are provided for motorcycles and six preferred spaces (60%) are provided for passenger vehicles.