Abstract
Noise legislation in Mexico started in the mid‐1970s, when most of the standards and recommendations available nowadays were issued, ranging from noise classification, sound level meter characteristics, to noise pollution and labor noise limits. Several of those standards were modified, with very little updating in the mid‐1990s, but most of them were just transposed to the national standards format, without any major technical change, because the original issuing office was a federal depending ministry, but not the official standards office. More recently one of those standards was improved in only 3 dB, and a noise monitoring system for Mexico City is under preparation. From the non legislation point of view, some posters have been published in newspapers and billboards, and radio and TV noise control programs have been broadcasted.
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