Hello everyone. I have heard a rumor in the building that I work in that we are not able to file supervisors working grievances anymore. Some say that management said this, and others say that the union steward of the building said this. Now, this sounds rather unbelievable to me. As far as I know, nothing can be changed about the contract until it expires in July 2013. Is it possible that a rider, addendum, or supplement of some sort is being applied to the region that I work in? Is it possible for parts of the contract to be changed before expiration? Thank You for any responses.