In recent years, the Southern California region has improved building codes, evacuation procedures, and procurement of new technology.

近年来，南加州地区改进了建筑规范、疏散程序和新技术采购。

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Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient but still carry great cost.

不断变化的建筑规范、人们逐渐发展的品味，以及维护这些精美的旧标志牌的高昂成本，让企业欣然接受了发光二极管。它们节约能源，但成本仍然很高。

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Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient, but still carry great cost.

变化的建筑法规，不断发展的品味，加上保养这些美丽而老旧的指示牌所需的高昂成本，都让商家们更欢迎 LED 灯，虽然 LED 灯节省能源，但是成本依然很高。

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Some may have been trying to get permits approved before building codes changed this month in California, Pennsylvania and New York.

VOA: special.2011.01.24

Additional floors often are hastily added without reference to fire and other building codes, monitors say.

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The new system meets international building codes by keeping the amplifiers and speaker drivers separate.

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Building codes and ordinances complicate matters and can prevent residents from living in the units full-time.

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