Inside each PPRA category:
- Code — broad area of business
- Subcode — exact activity inside that area
- Grade — capacity level for works contractors
Example: Code 138 — Marketing and Public Relations. Subcodes include 138/01 Marketing, 138/02 Advertising, 138/03 Public Relations. Registering 138/01 does not register you for 138/02 or 138/03. Each subcode is selected, assessed and charged separately.
Bidding without the exact code and subcode is one of the ordinary ways good companies lose. Works add a grade (OC through E) that caps the contract value you may pursue under that code.
Rule: register for the work you can prove — personnel, equipment, experience — not every code on the list.