What is the minimum frequency for publications to qualify as Periodicals?

For a publication to be classified as a Periodical, it must be released with the intention of being published at regular intervals. The minimum frequency requirement for this classification is four times a year. This means that a periodical typically has to have a quarterly publication schedule, allowing it to maintain consistency and a regular readership. By being published four times annually, periodicals can provide ongoing content to their audience and establish themselves as a reliable source of information, news, or entertainment. This frequency helps ensure that readers can anticipate the next issue, fostering a community around the publication and supporting ongoing engagement.