NAVFAC has been supporting the expeditionary warfighter since the establishment of the Seabees in World War II. This support continues today for a much broader community, which includes the Navy Expeditionary Combat Command, Naval Beach Groups ONE and TWO, Naval Special Warfare, Navy Expeditionary Medical Support and similar expeditionary forces ashore.

The major functions of NAVFAC Expeditionary are to develop and maintain the warfighter materiel allowance lists known as Tables of Allowances (TOA); conduct initial outfitting and life-cycle management of the systems, equipment and material authorized in the TOAs; and to support the operations of the Navy Expeditionary Combat Enterprise (NECE).

Several key documents and references guiding these functions are listed on the Expeditionary Documents page of this site.