Private Investment in Commuter Vanpooling Act of 2011 - Allows the local matching share of the cost of a public transportation capital project to include expenditures by a private commuter vanpooling service provider to acquire rolling stock (vans).
Authorizes such a private provider to use vanpool revenues exceeding operating costs to acquire such vans, if there is a binding agreement requiring the vans to be used in the state or local government's service area.