The Construction Specification Institute and the MasterFormat Expansion Task Team released an outline version of Draft 4 for public comment. This newest draft has abandoned the “grouping concept” of Draft 3 and reinstates the basic core structure of Divisions 0-14 that have historically been a part of MasterFormat.
Added to these were three series of divisions covering Facility Services, Infrastructure and Process Construction, and numbered in the 20s, 30s and 40s, respectively. The former Division 15 would become Mechanical Division 21 in the new Facility Services grouping. The six-digit paired numbering system that was implemented in Draft 3 remains. This system dramatically increases the number of slots available to specifiers and other users at each level of classification, where room is most needed.
