Concrete Construction ﾗ foundations
Building Cleaning--Exterior--Chemical Process & Drivers
Building Raising or Moving--Concrete or Concrete-Encased Steel & Drivers
Cable Tension System Installation--Commercial & Drivers
Chimney Construction--Not Metal & Drivers
Cleaning Building Exteriors--Water Blasting or Sandblasting & Drivers
Cleaning or Renovating Building Exteriors & Drivers
Concrete Construction--Erection of Precast and Prestressed Structural Concrete Products or Tilt-Up Wall Sections--Buildings One and Two Stories in Height & Drivers
Concrete Culvert Construction Not Over 10' High & Drivers
Concrete Grain Bin Construction & Drivers
Concrete Pumping or Placing NOC & Drivers
Concrete Sawing NOC & Drivers
Concrete Water Tank Erection & Drivers
Grain Bin Erection--Concrete & Drivers
Guniting--All Operations & Drivers
Plastic Coating of Roofs--Spray Method & Drivers
Roof Decking Installation--By Subcontractor--Aggregate Material & Drivers
Smokestack or Chimney Lining--Not Metal & Drivers
Tank Erection or Repair--Concrete & Drivers
Wrecking or Demolition--Not Marine--Concrete or Concrete-Encased Steel & Drivers

91523 Cleaning--Outside Surfaces of Buildings & Other Exterior Surfaces
91560 Concrete Construction
91581 Contractors--Subcontracted Work--In Connection with Construction, Reconstruction, Erection or Repair--Not Buildings
91618 Dam or Reservoir Construction
92451 Electrical Apparatus--Installation, Servicing or Repair
94404 Fireproofing--Structures
95505 Guniting or Shot-Crete
97447 Masonry
98640 Renovating--Outside Surfaces of Buildings
98705 Sandblasting
99952 Waterproofing--By Pressure Apparatus
99987 Wrecking--Dismantling of Prefabricated Dwellings Not Exceeding Three Stories for Reerection

1799 Special Trade Contractors, Nec
1771 Concrete Work
1629 Heavy Construction, Nec
1796 Installing Building Equipment
1741 Masonry and Other Stonework
1795 Wrecking and Demolition Work

238190 Other Foundation, Structure, and Building Exterior Contractors
238110 Poured Concrete Foundation and Structure Contractors
238120 Structural Steel and Precast Concrete Contractors
237990 Other Heavy and Civil Engineering Construction
238990 All Other Specialty Trade Contractors
238390 Other Building Finishing Contractors
238140 Masonry Contractors
238910 Site Preparation Contractors

5213 Concrete Construction ﾗ foundations
5215 Concrete Work--Incidental to the Construction of Private Residence
6017
5222 Concrete Construction in Connection With Bridges or Culverts

5213 Concrete Construction — foundations
5214 Concrete or Cement Work — precast
5212 Concrete Pumping
5225 Reinforcing Steel Installation
5207 Dam Construction — concrete
5482 Painting NOC & Shop Operations, Drivers
5222 Concrete Construction — bridges

0653 Masonry
0654 Concrete Construction
0855 Lumber And BLDG. Material Dealer
0655 Iron Erection

5213 CONCRETE CONSTR: NOC; DAM OR LOCK CONSTR; CLEANING OR RENOVATING BLDG EXT
5215 CONCRETE CONSTRUCTION: PRIVATE RESIDENCES - NOT MONOLITHIC
5222 CHIMNEY CONSTRUCTION - NOT METAL; CONCRETE CONSTRUCTION: BRIDGES OR CULVERTS;

5459 CLEANING or Renovating BUILDING EXTERIORS NOC & Drivers
5213 Concrete Construction ﾗ foundations
5215 CONCRETE WORK – incidental to the CONSTRuction OF private RESIDENCE
6017 DAM OR LOCK CONSTRUCTION: CONCRETE WORK
5466 WATERPROOFING & Drivers
5000 CHIMNEY CONSTRuction – NOT METAL
5701 WRECKING: BUILDING OR STRUCTURES – not marine

9025 CLEANING OUTSIDE SURFACES OF BUILDINGS & DRIVERS
5213 Concrete Construction ﾗ foundations
6017 DAM OR LOCK CONSTRUCTION-CONCRETE WORK-IN CONNECT WITH DAMS OR LOCKS-ALL TYPES-ALL OPER TO COMP & DR
5000 CHIMNEY CONSTRUCTION - NOT METAL - ALL OPERATIONS TO COMPLETION
5701 WRECKING - BUILDINGS - NOT MARINE - ALL OPERATIONS TO COMPLETION & DRIVERS

0653 Masonry
0654 Concrete Construction
0855 Lumber And BLDG. Material Dealer
0655 Iron Erection