Early planning and coordination among postal functional groups is required to properly consider environmental issues that may be attributable to the proposed action. Operational and facility personnel must cooperate in the early concept stages of a program or project. If it is determined that more than one postal organization will be involved in any action, a lead organization will be selected to complete the NEPA process before any NEPA documents are prepared. If it is determined that a project has both real estate and non-real estate actions, the facilities functional organization will take the lead.