This requirement applies to areas designated by the states under section 107 as having ambient air quality better than the applicable NAAQS, or for which there is insufficient data to make a determination of the air quality.

• 这一要求适用于州按照第107条款所指定的、大气质量超过《全国环境空气质量标准》的地区，或者那些缺乏充分数据确定其空气质量的地区。