Our project is an office building that is pursuing LEED for CS (2009). In order to comply with SSc4.3 we have chosen to install fueling stations for electric vehicles for 3% of the total vehicle parking capacity of the site. We will provide parking spots with a separate electric-car 240v slow charging outlet designed to support street-legal, long-range vehicles. Our questions are:
- Do those parking spots shall be "preferred" OR "for exlusive use" of electric (EV) or hybrid (HEV) only?
- Do we need to provide any special signage for those parking spots as it is required for the "preferred parking for low-emitting and fuel-efficient vehicles" option/path?

We would appreciate any help. Thanks.