证明程序——检测工厂中汽车符合符合联邦排放标准。
Certification program — the testing of automobiles at the factory for conformity to federal emissions standards.
现在，煤电行业可能正在应付新的联邦排放标准、空气污染法规、甚至是碳定价这一概念，但对于零碳排放的核能而言，以上种种却非常有利。
The coal industry may be fighting new federal emissions standards, air-pollution regulations and even the idea of carbon pricing, but those things are all a boon for carbon-free nuclear power.
1990年，一项联邦法律通过了加州有权利设定自己的汽车排放标准，而其他的州则按照环保署的标准限制。
A federal law passed in 1990 gave California the right to set its own standards for car emissions and allowed other states either to follow suit or stick to limits set by the EPA.
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