Committee 102, Iron Flanges & Flanged Fittings
Mission Statement: To develop and improve industry product standards for the design and manufacture of bronze, steel, and iron flanges and flanged fittings.
Current Standards: SP-6 (primary committee), SP-9 (primary committee)
Chair: John Helf
Vice Chair: Matt Dykema

Committee 105, Forged Steel Fittings
Current Standards: SP-79, SP-83, SP-95, SP-97
Chair: Brian Fabian
Vice Chair: Gabriel Dominguez

Committee 106, Cast Iron Valves
Mission Statement: To develop and improve industry product standards for the design and manufacture of cast iron gate, plug, globe, and check valves.
Current Standards: SP-45, SP-70, SP-71, SP-78, SP-85, SP-125, SP-128, SP-136, SP-146 (secondary committee), SP-156
Chair: Tim O’Shea
Vice Chair: Jim Pellegrini

Committee 108, Ferrous Threaded Fittings
Current Standards: SP-114
Chair: Matthew Coffey
Vice Chair: Annemarie Appleton

Committee 110, Steel Flanges & Flanged Fittings
Mission Statement: To develop, improve, and maintain industry standards for steel, high performance-type flanges.
Current Standards: SP-6 (secondary committee), SP-9 (secondary committee), SP-44, SP-51, SP-65
Chair: Carlos Davila
Vice Chair: Troy Gorrell

Committee 111, Product Regulation, Certification, and Industrial Policies
Mission Statement: This committee monitors regulations, certifications, and industrial policies associated with products of MSS member companies.
Current Standards: None.
Chair: Chad Harbour
Vice Chair: Allan Nelson

Committee 112, Water Works Valves & Fittings
Current Standards: SP-60, SP-98, SP-108, SP-111, SP-113, SP-116, SP-124
Chair: Randy Looney
Vice Chair: Chad Harbour

Committee 113, Wrought Welding Fittings
Current Standards: SP-43, SP-75, SP-87, SP-119
Chair: Tim Warren
Vice Chair: Dave Taylor

Committee 114, Steel Valves
Current Standards: SP-42, SP-61, SP-117, SP-126, SP-134, SP-135, SP-144
Chair: Paul Heald
Vice Chair: Vacant 

Committee 115, Instrument Valves
Current Standards: SP-99, SP-105, SP-130, SP-132
Chair: Joe Krance
Vice Chair: Kenneth Reid

Committee 201, Non-Ferrous Fittings and Flanges
Mission Statement: To develop, improve, and maintain industry product standards containing general and specific requirements related to non-ferrous flanges and fittings, within the scope of MSS activities.
Current Standards: SP-6 (secondary committee), SP-9 (secondary committee), SP-104, SP-106, SP-109, SP-123, SP-129
Chair: Brian Fabian
Vice Chair: Andrew Granzow

Committee 203, Non-Ferrous Industrial Valves
Mission Statement: To develop and improve industry product standards for the design and manufacturing of non-ferrous Gate, Globe, and Check valves.
Current Standards: SP-80, SP-139
Chair: Andrew Granzow
Vice Chair: Tim O’Shea

Committee 302, Marking and Terminology
Mission Statement: To develop and improve industry standards related to the marking and terminology of valves, fittings, flanges, and actuators.
Current Standards: SP-25, SP-86, SP-96
Chair: Luke Chou
Vice Chair: Kenneth Reid

Committee 304, Quality Standards
Mission Statement: To develop, improve, and maintain quality-related industry standards for general and specific requirements within the scope of MSS activities.
Current Standards: SP-53. SP-54, SP-55, SP-93, SP-94, SP-112, SP-137, SP-138, SP-140, SP-147, SP-150 (secondary committee)
Chair: Carlos Davila
Vice Chair: David Bayreuther

Committee 306, Valve Operation
Current Standards: SP-91, SP-92
Chair: Fred Washburn
Vice Chair: David Bayreuther

Committee 308, Packings & Gaskets
Mission Statement: To develop, improve, and maintain industry standards related to packing and gaskets for valves and fittings; including design requirements, qualification testing, live-loading requirements, and other topics.
Current Standards: SP-120, SP-143, SP-149
Chair: Jim Barker
Vice Chair: Thom Jessup

Committee 310, Valve Modification
Current Standards: SP-141, SP-153
Chair: Lance Bagley
Vice Chair: Greg Johnson 

Committee 401, Ball Valves
Mission Statement: To develop, maintain, and continually improve industry standards for the design and manufacture of metallic ball valves.
Current Standards: SP-72, SP-110, SP-145
Chair: Tim Narel
Vice Chair: David Bayreuther

Committee 402, Plastic Valves & Fittings
Mission Statement: To develop, improve, and maintain industry product standards with general and specific requirements related to plastic valves and fittings, within the scope of MSS activities.
Current Standards: SP-122
Chair: Andrew Granzow 
Vice Chair: Sean Allen

Committee 403, Pipe Hangers and Supports
Current Standards: SP-58, SP-127
Chair: Greg West
Vice Chair: Patrick Chen

Committee 406, Diaphragm Valves
Mission Statement: To develop, improve, and maintain diaphragm industry standards for general and specific requirements.
Current Standards: SP-88, SP-100
Chair: Carlos Davila
Vice Chair: Steve Donohue

Committee 407, Butterfly Valves
Mission Statement: To develop, improve, and maintain industry standards for general service and high performance butterfly type valves.
Current Standards: SP-67, SP-68, SP-138 (secondary committee), SP-150 (primary committee)
Chair: Jim Barker
Vice Chair: David Bayreuther 

Committee 408, Valve Actuators
Current Standards: SP-101, SP-102
Chair: David Bayreuther
Vice Chair: Vacant 

Committee 409, Knife Gate Valves
Mission Statement: To develop, improve, and maintain industry standards for industrial knife gate type valves; involving diverse materials and pressure categories.
Current Standards: SP-81, SP-135, SP-146 (primary committee), SP-148, SP-151, SP-152, SP-154
Chair: Jim Barker
Vice Chair: Ian Hardy 

Committee 410, Severe and Special Service Valves
Current Standards: 158
Chair: Paul Heald
Vice Chair: David Ashwill

Committee 501, Fuel Gas Valves, Fittings & Piping Components
Current Standards: SP-131
Chair: Andrew Granzow
Vice Chair: Adam Smith