NOM-242-SSA1-2009 - Mexican fishery-products standard — page updateshttps://heavymetalcertified.com/regulations/mx-nom-242-ssa1-2009-fishery-productsPublished revisions of this Heavy Metal Certified page.NOM-242-SSA1-2009 - Mexican fishery-products standardhttps://heavymetalcertified.com/regulations/mx-nom-242-ssa1-2009-fishery-productshttps://heavymetalcertified.com/regulations/mx-nom-242-ssa1-2009-fishery-products#revision-2e16e0db45207eebMon, 21 Sep 2026 04:04:58 GMTThe heavy-metal maximum levels set by NOM-242-SSA1-2009 - Mexican fishery-products standard (MX), as recorded in the Heavy Metal Index register and cited by HMTc certification standards. Records sovereign law; does not set HMTc thresholds.