For a new building, does the contractor have to develop an IAQ management plan to comply with the intent of this credit?
Yes. See the Reference Guide for details. There was a suggestion that the USGBC develop general guidelines to be included in specifications with a specific submittal (or Construction IAQ Management Plan) required by the contractor. The rating system was designed to spread the responsibility to various disciples to encourage an integrated design process. This is one area where the responsibility rests with the contractor. Applicable internationally.