A docket is a collection of documents related to a rulemaking or other action. EPA’s dockets are made available to the public online through Regulations.gov and in-person at the EPA Docket Center. When a docket is established, it is assigned a docket number, which you may use to search for information about the rulemaking on Regulations.gov. Often, the docket number is also included in the heading of a rule when it is published in the Federal Register to make it easier for you to track our actions.