While agencies typically promulgate permanent rules, an agency may temporarily adopt a rule as an emergency rule if the agency determines that the preservation of public peace, health, safety, or welfare necessitates placing a rule into effect prior to the time it could take effect as a permanent rule. As with permanent rules, the Legislature maintains an oversight role with respect to emergency rules, primarily through the statutory powers granted to the Joint Committee for Review of Administrative Rules. This issue brief summarizes the emergency rulemaking process and the mechanisms for legislative oversight of emergency rules.