There are no “LEED Police.” The preferred parking spaces required for non-residential buildings are largely based on the honor system and the integrity of building management and users. Consider incorporating an enforcement mechanism that will ensure carpool parking spaces are not abused. To ensure that preferred parking polices are respected, consider the following strategies:

Use signage in conjunction with parking permits.
Use a sticker program to identify carpool vehicles that have access to preferred parking spaces.
Clearly communicate to occupants the steps required to acquire a parking permit or sticker from building management.