- Full NL Master Specification Guide (6.4 MB)
- Division 1 – General Requirements
- Division 2 – Existing Conditions
- Division 3 – Concrete
- Division 4 – Masonry
- Division 5 – Metals
- Division 6 – Wood, Plastics And Composites
- Division 7 – Thermal and Moisture Protection
- Division 8 – Openings
- Division 9 – Finishes
- Division 10 – Specialities
- Division 11 – Equipment
- Division 12 – Furnishings
- Division 13 – Special Construction
- Division 14 – Conveying Systems
- Division 21 – Fire Suppression
- Division 22 – Plumbing
- Division 23 – Heating, Ventilation And Air Conditioning (HVAC)
- Division 25 – Integrated Automation
- Division 26 – Electrical
- Division 27 – Communications
- Division 28 – Electronic Safety And Security
- Division 31 – Earthwork
- Division 32 – Exterior Improvements
- Division 33 – Utilities
- Division 34 – Transportation
- Division 35 – Waterway And Marine Construction
- Division 42 – Process Heating, Cooling, And Drying Equipment
- Division 44 – Pollution Control Equipment