05 50 00 Metal Fabrications 22 00 00 Plumbing 22 01 00 Operation and Maintenance of Plumbing 22 10 00 Plumbing Piping 26 00 00 Electrical 26 01 00 Operation and Maintenance of Electrical Systems 26 06 00 Schedules for Electrical 26 08 00 Commissioning of Electrical Systems 40 12 00 Compressed Air Process Piping 45 00 00 Industry-Specific Manufacturing Equipment

22 00 00 Plumbing 02 71 00 Groundwater Treatment 22 33 00 Electric Domestic Water Heaters 22 34 00 Fuel-Fired Domestic Water Heaters 22 42 00 Commercial Plumbing Fixtures 33 30 00 Sanitary Sewerage Utilities 40 12 00 Compressed Air Process Piping