Skip to main content

Scam Alert: Fake Texts and Websites Impersonating IDOR

Be alert for fraudulent messages or websites attempting to steal your banking information, login credentials, or credit card details. The Illinois Department of Revenue (IDOR) will never request personal or financial information via text message. To confirm official communications or contact details, always visit https://tax.illinois.gov.

Employment Sign Up for Updates

SIC codes assigned to Group 06 - Lumber, Building, and Hardware

  • 1521 - Single-family housing construction
  • 1522 - Residential construction, NEC
  • 1531 - Operative builders
  • 1541 - Industrial buildings and warehouses
  • 1542 - Nonresidential construction, NEC
  • 1611 - Highway and street construction
  • 1622 - Bridge, tunnel, and elevated highway
  • 1623 - Water, sewer, and utility lines
  • 1629 - Heavy construction, NEC
  • 1711 - Plumbing, heating, air-conditioning
  • 1721 - Painting and paper hanging
  • 1731 - Electrical work
  • 1741 - Masonry and other stonework
  • 1742 - Plastering, drywall, and insulation
  • 1743 - Terrazzo, tile, marble and mossaic
  • 1751 - Carpentry work
  • 1752 - Floor laying and floor work, NEC
  • 1761 - Roofing, siding, and sheetmetal work
  • 1771 - Concrete work
  • 1781 - Water well drilling
  • 1791 - Structural steel erection
  • 1793 - Glass and glazing work
  • 1794 - Excavation work
  • 1795 - Wrecking and demolition work
  • 1796 - Installing building equipment
  • 1799 - Special trade contractors, NEC
  • 5211 - Lumber and other building materials
  • 5231 - Paint, glass, and wallpaper stores
  • 5251 - Hardware stores
  • 5261 - Retail nurseries and garden stores
  • 5271 - Mobile home dealers