mandatory standard

基本解释

If the Chinese signs do not meet the mandatory standard or simply do not, can be identified as counterfeit imports.
如果中文标志不符合国家强制标准或者干脆没有，都可以认定为假冒韩国化妆品品牌排名进口商品。
www.cn-eb.com
From the normative law point of view, mandatory of food safety standards means it has the effectiveness of mandatory, rather than it is the mandatory standard itself.
从规范法学角度看，食品安全标准的强制性是指食品安全标准“具有强制效力”，而非食品安全标准本身是强制标准。
em.cjlu.edu.cn
In 1988, China's first food labelling mandatory retro standard for food labelling.
1988年，我国首次制定食品标签强制性国标《食品标签通用标准》。

The issue is of particular concern to utilities in the Southeast, like Southern, which argue that there is simply not enough wind energy in the region to warrant a mandatory standard for renewables.
FORBES: Tilting At Windmills
It's a mandatory fuel standard.
NPR: President Bush's Remarks on the World Agenda
Once adopted as a standard, such devices become virtually mandatory because doctors can also be sued for not using them.
FORBES: Defensive Medicine