# S Mark — Certification marks and hazardous-area classifications: cross-market equivalences For S Mark, market / system is Argentina; administered by is IRAM; mandatory / voluntary is mandatory in Argentina, verified against its source on 2026-08-11. - **Designation:** S Mark _(verified: appears in the quote below)_ - **Market / system:** Argentina _(verified: appears in the quote below)_ - **Administered by:** IRAM _(verified: appears in the quote below)_ - **Mandatory / voluntary:** mandatory in Argentina _(verified: appears in the quote below)_ ## What the source says > Product certification to IEC-based standards is mandatory in Argentina under the auspices of its standards body IRAM with conformance indicated by the S Mark. ## Source - https://www.belfuse.com/resource-library/tech-paper/power-supply-safety-standards-agencies-and-marks Last verified: 2026-08-11. Review by: 2027-08-11. Part of [Certification marks and hazardous-area classifications: cross-market equivalences](https://referencesource.org/certification-standards-equivalence/).