Minor works contractors by class and type

Minor works are grouped by scale, complexity and risk into Class I (high), II (medium) and III (low), and by nature into eight types, A to H. A contractor must be registered for both the class and the type of the work. Classes explained

By type

• A Alteration and addition works (8,390)
• B Repair works (5,815)
• C Works relating to signboards (4,715)
• D Drainage works (7,352)
• E Works relating to structures for amenities (5,972)
• F Finishes works (6,234)
• G Demolition works (7,313)
• H Works relating to ventilation systems inside buildings (809)

By class

• Class I (1,000)
• Class II (8,563)
• Class III (8,595)