| Rating | minimum score | other conditions |
| 5 Penguin | 70 | no category less than 3 (except breeding program which must be 2) and at least 6 categories with scores of 5 |
| 4 Penguin | 60 | no more than 4 categories less than 3 and none less than 2 (except breeding program which must be 2) and at least 3 categories with scores of 5 |
| 3 Penguin | 50 | no category less than 2 and at least one category scoring 5 |
| 2 Penguin | 40 | |
| 1 Penguin | 25 |
| Suitability of Environment | 1- poor 5 - excellent |
| Space | 1- poor 5 - excellent |
| Area of water | 1-low 5 - high |
| Water depth | 1 - shallow 5 - deep |
| Water cleanliness
General cleanliness |
1- poor 5 - excellent |
| Nest sites / materials | 1- poor 5 - excellent |
| No. of species
No. of birds |
1- poor 5 - excellent |
| Activity in water
Activity on land |
1- poor 5 - excellent |
| Frequency of swimming | 1- rarely 5 - often |
| Breeding success | 1- poor 5 - excellent |
| Information in exhibit | 1- poor 5 - excellent |
| Merchandise, etc. | 1 - none 5 - plenty |
| Accessibility
Cost |
1- poor 5 - excellent |
| Membership of breeding program | 1 - no 2 - yes |
| Health of penguins | 1- poor 5 - excellent |
| Lack of imprinting on humans | 1- poor 5 - excellent |
| Good moults | 1- poor 5 - excellent |