P263 · Precautionary statementAvoid contact during pregnancy and while nursing.

Precautionary · PreventionHealth

P263 is the GHS precautionary statement “Avoid contact during pregnancy and while nursing”. UN GHS Annex 3 assigns it to Reproductive toxicity, effects on or via lactation (chapter 3.7), Category Additional category. The English wording is the same as UN GHS Rev.11 in US OSHA, EU CLP and Canada. Canada’s official French text is “Éviter tout contact avec la substance au cours de la grossesse et pendant l'allaitement” and Mexico’s Spanish text is “Evitar todo contacto con la sustancia durante el embarazo y la lactancia”. In the UN GHS Rev.11 label matrix it is used with 1 hazard statement (UN only).

Maintained by Valenc. Data checked 2026-10-20.

Heading text: UN GHS Rev.11 Annex 3. Wording can differ by jurisdiction; see the table below.

Wording by jurisdiction

UN GHS Rev.11

Same as UN

GHS Rev.11 (2025), Annex 3

Avoid contact during pregnancy and while nursing.

UN GHS Rev.11, Annex 3, Table A3.2.2, PDF p. 319

US OSHA HCS

Same as UN

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

Avoid contact during pregnancy and while nursing.

29 CFR 1910.1200 App. C, matched by wording

EU CLP

Same as UN

EU_CLP_2025 · consolidated 1 Jul 2026

Avoid contact during pregnancy and while nursing.

EU CLP, Annex IV, Part 2

Canada (EN)

Same as UN

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

Avoid contact during pregnancy and while nursing.

GHS Rev.7 Annex 3 Table A3.2

Canada (FR)

Adopted

WHMIS_2022 · SGH Rév.7, texte officiel

Éviter tout contact avec la substance au cours de la grossesse et pendant l'allaitement.

GHS Rev.7 Annex 3 Table A3.2

Mexico (ES)

Adopted

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

Evitar todo contacto con la sustancia durante el embarazo y la lactancia

NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 35

Hazard classes and categories

Reproductive toxicity, effects on or via lactation (chapter 3.7) · Category Additional category

UN GHS Rev.11 Annex 3, sections 1 and 2

H statements it is used with in the UN GHS Rev.11 label matrix only

UN GHS Rev.11 only. EU CLP, US OSHA, Canada (GHS Rev.7) and Mexico assign their own P statements; check the regulation for your market.

H362

UN GHS Rev.11 Annex 3, section 3. Listed for at least one category that uses each H statement.

Change in UN GHS Rev.11

No change to the wording or the hazard classes in Annex 3 compared with Rev.10.

Sources

Each cell in the table names the official table and page for P263. 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.