This document provides manufactures a set of guidelines in the 
design and development of an initial set of Cockpit Display of 
Traffic Information (CDTI) features.  CDTI is the function of 
presenting surveillance information about the surrounding 
traffic to the flight crew. This guidance document is advisory 
in nature and its contents are expected to be a subset of the 
final CDTI MOPS.  That MOPS, when published, will replace this 
document.  In order to comply with certification standards, 
manufactures will be required to demonstrate that 1) CDTI meets 
it intended functions, and 2) CDTI does not interfere with any 
other aircraft systems.  This interim guidance provides a 
description of the intended functions of CDTI and as such may 
aid the certification process.