What are the eligibility criteria for packages to qualify for Media Mail rates?

Packages must contain only eligible media items to qualify for Media Mail rates. This service is specifically designed for the distribution of educational materials and media, including books, CDs, DVDs, vinyl records, and similar items that serve an informational purpose. It's crucial that the contents align with these guidelines, as the eligibility is strictly enforced to ensure that Media Mail is used appropriately for the intended media items.

While it is true that there is a weight limit for Media Mail (which may seem relevant), just being under five pounds does not automatically make a package eligible if the contents do not qualify. Similarly, sending Media Mail is not restricted to businesses, as individuals can also send eligible media items. Lastly, not all Media Mail shipments are required to have tracking; while it's available for an additional fee, it is not a prerequisite for the rate itself. Thus, the focus on the contents being eligible media items is the key factor in qualifying for Media Mail rates.