P342+P311 · Precautionary statementIf experiencing respiratory symptoms: Call a POISON CENTER/doctor/ …

Precautionary · ResponseCombinedRemoved in UN GHS Rev.8

Removed in UN GHS Rev.8. Still listed in US OSHA, EU CLP, Canada and Mexico. P342+P311 is the GHS precautionary statement “If experiencing respiratory symptoms: Call a POISON CENTER/doctor/ …”. Canada’s official French text is “En cas de symptômes respiratoires: Appeler un CENTRE ANTIPOISON/un médecin/...” and Mexico’s Spanish text is “En caso de síntomas respiratorios, llamar a un centro de toxicología o médico /...”.

Heading text: EU CLP. Wording can differ by jurisdiction; see the table below.

Wording by jurisdiction

UN GHS Rev.11

Deleted
GHS Rev.11 (2025), Annex 3

Removed in UN GHS Rev.8 (ST/SG/AC.10/46/Add.3, Annex III), where this combination was renumbered to its P316/P317 form. Not in UN GHS Rev.11 Annex 3. Still in GHS Rev.7 Annex 3, Table A3.2.3.

US OSHA HCS

Adopted
HCS 2024 · primarily GHS Rev.7, some Rev.8

If experiencing respiratory symptoms: Call a poison center/doctor/…

29 CFR 1910.1200 App. C, matched by wording

EU CLP

Adopted
EU_CLP_2025 · consolidated 1 Jul 2026

If experiencing respiratory symptoms: Call a POISON CENTER/doctor/ …

EU CLP, Annex IV, Part 2

Canada (EN)

Adopted
WHMIS_2022 · GHS Rev.7 (Rev.8 for chemicals under pressure)

If experiencing respiratory symptoms: Call a POISON CENTER/doctor/...

GHS Rev.7 Annex 3 Table A3.2

Canada (FR)

Adopted
WHMIS_2022 · SGH Rév.7, texte officiel

En cas de symptômes respiratoires: Appeler un CENTRE ANTIPOISON/un médecin/...

GHS Rev.7 Annex 3 Table A3.2

Mexico (ES)

Adopted
NOM-018-STPS-2015 · GHS 5th revised edition

En caso de síntomas respiratorios, llamar a un centro de toxicología o médico /...

NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 37

Related codes

Change in UN GHS Rev.11

No change in Rev.11. Removed in UN GHS Rev.8 (ST/SG/AC.10/46/Add.3, Annex III), where this combination was renumbered to its P316/P317 form. Not in UN GHS Rev.11 Annex 3. Still in GHS Rev.7 Annex 3, Table A3.2.3. Some jurisdictions still use it (see the table above).

Notes

Removed in UN GHS Rev.8. Still listed in: EU CLP, US OSHA, Canada (GHS Rev.7), Mexico (NOM-018).

Sources

Each cell in the table names the official table and page for P342+P311. Full citations, links and revision notes for UN GHS Rev.11, US OSHA, EU CLP, Canada and Mexico: Sources and revision notes.

These are regulatory phrases for labels and safety data sheets. Check them against the official source for your jurisdiction before use.

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