| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| marpol annex 4 discharge criteria | 0.75 | 0.1 | 9628 | 64 |
| marpol annex 4 sewage discharge criteria | 0.04 | 0.4 | 8589 | 39 |
| marpol annex 1 special areas discharge | 0.76 | 0.9 | 8067 | 28 |
| marpol annex 4 regulations | 0.31 | 0.1 | 3075 | 18 |
| marpol annex 4 pdf | 0.45 | 0.2 | 2457 | 91 |
| marpol annex 4 regulation 11 | 0.97 | 0.5 | 9023 | 81 |
| marpol annex 4 certificate | 0.33 | 0.4 | 5412 | 56 |
| marpol annex 5 regulations | 0.86 | 0.2 | 4169 | 88 |
| marpol annex 3 regulations | 0.3 | 0.6 | 7234 | 51 |
| marpol annex 1 requirements | 0.13 | 0.6 | 1170 | 65 |
| marpol annex 5 pdf | 0.82 | 0.6 | 5406 | 98 |
| marpol annex iii regulations | 1.73 | 0.9 | 6213 | 96 |
| marpol annex 1 to 6 | 1.16 | 0.5 | 4214 | 17 |
| marpol annex 1 regulations | 1.92 | 0.3 | 9862 | 87 |
| marpol annex 6 regulation 14 | 0.87 | 0.7 | 2633 | 56 |
| marpol annex 1 regulation 14 | 0.47 | 0.4 | 4994 | 90 |
