The following are the End-to-End Priority Mail (delivery standards) for the following destinations:
| USA | 17 days |
| Great Britain | 17 days |
| Canada | 17 days |
| T&T | 10 days |
| Antigua and Barbuda | 10 days |
| Belize | 8 days |
| Cayman Islands | 8 days |
| Guyana | 6 days |
| Jamaica | 9 days |
| St. Lucia | 7 days |
| St. Vincent & The Grenadines | 7 days |
Delivery Standards and Targets for Inbound Letter Post are as follows:
More than 2 days after posting – 75%
Inbound parcels 7 days after receipt
The end-to-end standards for air parcels are as follows:
Country Incoming Outbound
Caribbean 14 12
USA 18 18
Europe 21 23
Canada 18 18
End to end standards for Surface Airlift parcels are as follows:
Country Outbound
Caribbean 14
USA 21
Europe 28
Canada 21
Great Britain 24