1 napcs discussion paper north american product classification system concepts and process of identifying service products by michael f mohr anne s russell presented at 17th annual meeting the voorburg group on statistics nantes france september 23 27 2002 papers are provided to foster facilitate professional exchange matters related development implementation is us coordinator for chair subcommittee naics sector 51b information an assistant division chief in census bureau 2 i summary this presents processes used identify final a new initiative that statistical agencies canada mexico united states pursuing followed challenges they addressed very similar those price practitioner faces determining appropriate indexes includes lists engineering services advertising complement corresponding producer index presentations industries since february 1999