根据香港特区政府新修订的食物标签条例，由一九九九年六月一日起，在香港出售的预先包装食物，包括急冻食物及一般保质期十八个月以上的食物，都必须附有适当的标签说明。售卖超逾‘ｕｓｅｂｙ’或‘此日期前食用’之日期的食物，即属违法。另外，任何人士未经许可下擅自更改? According to the newly revised Food Labelling Ordinance of the Hong Kong SAR Government, from June 1, 1999, prepackaged foods sold in Hong Kong, including frozen foods and foods with a general shelf life of more than 18 months, must be accompanied by Appropriate labeling instructions. It is an offence to sell food that exceeds the date of ‘useby’ or ‘before this date’. In addition, does anyone change without permission?