Employers are placed in a special hazard classification unit when their annual assessable payroll is more than four times the maximum wage rate for the year that the special hazard activity is undertaken.

Special hazard classification units for 2018:

• CU 714023 [Shake or Shingle Mill]
• CU 721024 [Framing or Residential Forming]
• CU 721051 [Steep Slope Roofing]