Scope of this ESSENTIAL
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This ESSENTIAL describes the safety of pressure equipment requirements of Mexico, based on the specific Official Mexican Standards (NOM), which are mandatory technical regulations: NOM-020-STPS-2011 Containers subject to pressure, cryogenic containers and steam generators or boilers - Operation - Safety Conditions.
Imported pressure equipment must comply with NOM regulations, to be approved by: - Certificate of Compliance, issued by a certification body, or - Opinion (with service report), issued by a verification unit.'
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