Which of the following is an additional labeling requirement for non-farm agricultural seed?

The correct choice is the requirement for labeling non-farm agricultural seed with the statement "SELL BY [month/year]" or "USE BEFORE [month/year]." This requirement is in place to guide consumers and sellers regarding the viability and quality of the seeds. Knowing when seeds should be used or sold helps ensure that they remain effective for planting and growing.

By specifying a "SELL BY" or "USE BEFORE" date, this regulation helps to reduce the likelihood of farmers or gardeners purchasing seeds that may no longer germinate properly or yield successful crops. This label provides clarity and helps maintain quality standards for agricultural products, ensuring that consumers can make informed decisions about the seeds they are acquiring.

The other options do not align with standard requirements for non-farm agricultural seed labeling. For example, while "USE BY" and "SELL BY" dates both relate to perishable goods, they serve different contexts in agriculture. Similarly, the stipulation regarding expiration not exceeding 12 months is not a universal rule applied specifically to agricultural seeds. The requirement for lowercase letters on labels is more about ensuring readability rather than meeting a specific agricultural requirement.