What is the minimum frequency required for Periodicals to be considered as First-Class mail?

To qualify as First-Class mail, periodicals must be published a minimum of four times annually. This requirement ensures that these publications maintain a consistent schedule, thereby guaranteeing timely delivery and relevance to subscribers. The classification as First-Class mail allows for faster delivery services compared to other mailing classifications, which is beneficial for periodicals that aim to keep their readers updated with recent information and news. Meeting the four-times-a-year threshold is essential for maintaining this classification, enabling periodicals to take advantage of the expedited handling and delivery advantages associated with First-Class mail.