P502 · Precautionary statementRefer to manufacturer or supplier for information on recovery or recycling.

Precautionary · DisposalEnvironmentalChanged in Rev.11Not adopted: US

P502 is the GHS precautionary statement “Refer to manufacturer or supplier for information on recovery or recycling”. UN GHS Annex 3 assigns it to Hazardous to the ozone layer (chapter 4.2), Category 1 and Hazardous by contributing to global warming (chapter 4.2), Category 1. The English wording is the same as UN GHS Rev.11 in EU CLP and Canada. Not adopted in US OSHA. Canada’s official French text is “Se reporter au fabricant ou au fournisseur pour des informations concernant la récupération ou le recyclage” and Mexico’s Spanish text is “Pedir información al fabricante o proveedor sobre la recuperación o el reciclado”. In the UN GHS Rev.11 label matrix it is used with 2 hazard statements (UN only). Changed in UN GHS Rev.11: hazard classes/categories changed.

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

Refer to manufacturer or supplier for information on recovery or recycling.

UN GHS Rev.11, Annex 3, Table A3.2.5, PDF p. 338

US OSHA HCS

Not adopted

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

No matching wording in OSHA Appendix C.

EU CLP

Same as UN

EU_CLP_2025 · consolidated 1 Jul 2026

Refer to manufacturer or supplier for information on recovery or recycling.

EU CLP, Annex IV, Part 2

Canada (EN)

Same as UN

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

Refer to manufacturer or supplier for information on recovery or recycling.

GHS Rev.7 Annex 3 Table A3.2

In GHS Rev.7 this statement is only assigned to classes or categories that the HPR does not adopt.

Canada (FR)

Adopted

WHMIS_2022 · SGH Rév.7, texte officiel

Se reporter au fabricant ou au fournisseur pour des informations concernant la récupération ou le recyclage

GHS Rev.7 Annex 3 Table A3.2

Mexico (ES)

Adopted

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

Pedir información al fabricante o proveedor sobre la recuperación o el reciclado

NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 39

Hazard classes and categories

Hazardous to the ozone layer (chapter 4.2) · Category 1
Hazardous by contributing to global warming (chapter 4.2) · Category 1

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.

H420 H421

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

Changed from Rev.10: hazard classes/categories changed.

Rev.11:

Hazardous by contributing to global warming (chapter 4.2): 1

Sources

Each cell in the table names the official table and page for P502. 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.