FOREWORD This change updates the requirements for ventilation controls@ especially in the case of systems that are intended to operate continuously or automatically in multifamily units. In this case@ the change supports the concept that the building owner should have the option of retaining control of the systems that they install and maintain to provide minimum indoor air quality and to manage indoor humidity for the building occupants. The change also updates the language related to the labeling of whole-building mechanical ventilation controls by approving icons for use in addition to text-based labels. Finally@ the change recognizes humidity sensors as a form of automatic controls for demand controlled mechanical ventilation. With California??s new requirement for humidity sensors in all bathrooms@ these are likely the most common form of automatic controls on the market and so should be included. Note: In this addendum@ changes to the current standard are indicated in the text by underlining (for additions) and(for deletions) unless the instructions specifically mention some other means of indicating the changes.