3-3 Cargo (39 CFR 310.3(a))

The sending or carrying of letters is permissible if they accompany and relate in all substantial respects to some part of the cargo or the ordering, shipping, or delivering of the cargo.

Examples

• Marcy’s novelty store includes invoices or instructions for the use of its products in privately carried parcels. Invoices and instructions are normally considered letters, but when they relate in all substantial aspects to some part of the cargo, they meet this exception.
• Subscription notices are frequently delivered with the Daily Herald newspaper. The private carriage of subscription notices qualifies under this exception.
• A credit policy brochure of Scott’s Security Company is included with privately carried merchandise. Because the brochure is unrelated to the cargo it accompanies, the criterion for this exception is not met.