the management of food dealer business license obtained by food dealers according to the provisions of this act before the amendment thereof shall follow the regulations regulating the food dealer registration certificate food dealers shall file for the issuance and change of the food dealer registration certificate before the expiration of their food dealer business license

食品经营者依本法规定取得食品经营者经营许可证，其变更前之管理，依食品经营者登记证管理办法办理。食品经营者应于其食品经营者经营许可证期满前，申请食品经营者登记证之签发及变更

以上为机器翻译结果，长、整句建议使用 人工翻译 。