What is the proper way to separate letters in boat registration numbers?

The proper way to separate letters in boat registration numbers is with spaces. This formatting is crucial because it helps ensure clear recognition of the registration number on the boat and allows for easier identification by law enforcement and regulatory agencies. Using spaces between the characters improves visibility and helps prevent confusion that might arise from running the letters together, especially when viewed from a distance or at speed.

In contrast, hyphens and slashes could create misunderstandings or misinterpretations of the registration number, potentially leading to legal challenges or issues with compliance. The option of not using any separation does not adhere to best practices and can cause the registration number to appear less legible. Therefore, using spaces is the most effective and recommended method for formatting boat registration numbers.