Piping > Pipeline Modification > Editing Pipelines > Piping Layers in Spec-Driven Piping > About Piping Layers in Spec-Driven Piping
  
About Piping Layers in Spec-Driven Piping
In Spec-Driven Piping mode, you can use layers in a model or a layout as an organizational tool. By associating items with a layer, you can collectively manipulate them such as to delete, reorder, suppress, or show or blank them selectively.
Spec-Driven Piping creates three piping layers after you create a pipeline. These layers are located in the active pipe assembly and use the naming convention established in the Specification Database during piping setup.
Spec-Driven Piping creates the following three types of layers:
ROUTE—Contains all routing features in piping assembly
FITTING—Contains all fitting components for the subassembly
SOLID—Contains all pipe solids for subassembly