So few parking spaces and although more carpool parking spaces.

Mathilda, as it seems no-one else here as experience of this, I am going to submit a CIR. As far as I am concerned, the intent of the credit is being met int terms of limiting parking to encourage public transport usage and through providing preferred parking to car pool users. I'll let you know what happens!

There's a LEED Interpretation that is applicable to CI 2009 projects and hopefully answers this for you: http://www.usgbc.org/leed-interpretations?keys=5218 The Ruling says: The project is asking if providing preferred carpool parking for 5% of total parking capacity is an acceptable alternative compliance pathway for achieving SSc3.3 under LEED CI. The answer depends on the amount of parking available to employees. Per a previous LEED CI SSc3.3 CIR ruling dated 1/27/2007, based on a scenario with limited parking access for employees, using LEED-NC v2.2 SSc4.4 Option 1 as a compliance path to determine the number of preferred parking spaces for carpools is reasonable for the LEED-CI project. "Limited parking access for employees" is defined as 20% or less of employees having access to parking. If more than 20% of the parking is available to employees then the requirements of SSc3.3 as defined in the LEED CI reference guide need to be met Project teams will need to adequately demonstrate how parking is restricted to employees to pursue this alternative compliance pathway.

Thank you from me too. How did you manage to find that? I had looked! Anyway, does that mean I can just submit our evidence for this without a CIR as long as I follow these guidelines and make reference to this interpretation?

Just to follow on from Rebecca's question, we did submit our proposal and refered to interpretation ruling no. 5218. It was accepted by USGBC without any issues and no additional CIR was required.