Five rating regions determine green slip prices
Geographical zone, like vehicle class, is an important factor in setting CTP green slip prices.
State Insurance Regulatory Authority (SIRA) allocates geographical zones (also known as rating regions). They are used in Premium Determination (setting prices), as in the Motor Accident Guidelines. Insurers are required to set green slip prices on the basis of these rating regions.
NSW is divided into 5 rating regions for the purpose of setting green slip prices.
Split postcodes
Five postcodes are split between 2 rating regions. It is important to choose the right suburb for split postcodes when using the greenslips.com.au Calculator.
Allocation of postcodes to zones
| Zone | Postcode |
| Metropolitan | 1001 to 2082 2084 to 2234 2555 to 2559 2561 to 2567 2745 to 2749 2751 2759 to 2770 |
| Outer Metropolitan |
2568 to 2574 2752 2754 to 2755 2757 to 2758 2773 to 2786 |
| Newcastle and Central Coast | 2250 to 2309 2314 to 2327 |
| Wollongong | 2500 to 2526 2530 |
| Country | 2311 to 2312 2328 to 2490 2527 to 2529 2532 to 2551 2575 to 2739 2787 to 2899 |
Allocation of split postcodes to zones
|
Split Postcodes |
Normal Zone |
Exception Areas |
Zone for Exception Areas |
| 2083 | Metropolitan | Mooney Mooney Cheero Point Bar Point Milsons Passage Cogra Bay |
Newcastle & Central Coast |
| 2560 | Metropolitan | Appin | Outer Metropolitan |
| 2750 | Metropolitan | Emu Plains (all suburbs) Leonay |
Outer Metropolitan |
| 2753 | Metropolitan |
Bowen Mountain Grose Vale Grose Wold Yarramundi Yarramundi Falls |
Outer Metropolitan |
| 2756 |
Metropolitan | Colo (all suburbs) Ebenezer Freemans Reach Glossodia Lower Portland Wilberforce (all suburbs) Sackville |
Outer Metropolitan |