AIA Long Format Layer Standard

The AIA Long Format Standard contains the following fields:

Field Name Description
Discipline Designator Shows divisions of manageable sections. For example, A for architectural, M for mechanical. This field is required.
Major Designates assemblies or construction systems such as walls and doors. This field is required.
Minor 1 Further differentiates major groups into minor groups such as full-height walls and partial-height walls. This field is optional and user-defined.
Minor 2 Additional information, like title or unit information.
Status Differentiates phases of work. For example, New indicates new, Demo indicates to be demolished. This field is optional.

The following table lists the rules for the AIA Long Format Layer Standard:

Field Optional Width Fixed Wildcard Match Delimiter Default
Discipline Designator No 1 Yes “@” No None A
Major No 4 Yes “@@@@” No “-“ Wall
Minor Yes 4 No “*” No “-“  
Status Yes 4 No “*” No “-“