8.0 Preferred Manufacturers List

Preferred List of Manufacturers (PML) contains specific manufacturers that are acceptable for use on U-M projects. This section is divided by CSI number. When the A/E uses U-M Master Specifications for a project, adding manufacturers from the PML as approved manufacturers in the specification is optional.

For U-M Health funded projects, refer to the U-M Health Preferred Manufacturers Lists.

Preferred Manufacturers List General Procedures

Request for Addition or Change of Listing to U-M Preferred Manufacturers List

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GuidelineLast UpdateReplaces Document
8.1 SubstitutionsFebruary 2015SID-E Substitutions
8.2 ArchitecturalApril 2024 
8.3 MechanicalJuly 2022 
8.4 ElectricalAugust 2025 
8.5 Site/Civil  

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