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  3. /NOM-085-SEMARNAT-2011
SEMARNAT (Environment)EnvironmentalActive

NOM-085-SEMARNAT-2011

Air pollution — Maximum permissible emission levels for indirect heating equipment

Establishes maximum permissible atmospheric pollutant emission levels for indirect heating equipment such as boilers, heaters and industrial furnaces. Regulates particle, SO2, NOx and CO emissions.

Last updated: 2023

Affected products

Industrial boilersProcess heatersIndustrial furnacesSteam generatorsCombustion equipment

Compliance requirements

  • Meet particle emission limits
  • SO2, NOx and CO limits by capacity
  • Periodic emissions monitoring
  • Equipment operation log
  • Conformity operation certificate

Related tariff codes

These tariff codes may be subject to this NOM. Check the specific code to confirm.

8402.11.018402.19.018417.10.01

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