| 00 | No known hazards or warnings | Product assessed but no known hazards or warnings applicable. May be applied to both digital and physical products. Only for use in ONIX 3.0 or later | 64 | |
| 01 | WARNING: CHOKING HAZARD – Small parts | Not for children under 3 yrs. | Required on applicable products sold in the US | 9 | |
| 02 | WARNING: CHOKING HAZARD – Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required | Keep uninflated balloons from children. Discard broken balloons at once. | Required on applicable products sold in the US | 9 | |
| 03 | WARNING: CHOKING HAZARD – This toy is a small ball | Not for children under 3 yrs. | Required on applicable products sold in the US | 9 | |
| 04 | WARNING: CHOKING HAZARD – Toy contains a small ball | Not for children under 3 yrs. | Required on applicable products sold in the US | 9 | |
| 05 | WARNING: CHOKING HAZARD – This toy is a marble | Not for children under 3 yrs. | Required on applicable products sold in the US | 9 | |
| 06 | WARNING: CHOKING HAZARD – Toy contains a marble | Not for children under 3 yrs. | Required on applicable products sold in the US | 9 | |
| 07 | No choking hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 9 | |
| 08 | WARNING: STRANGULATION HAZARD – Long cord | Not for children under 3 yrs. | Required on applicable products sold in the US | 57 | |
| 09 | No strangulation hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 57 | |
| 11 | WARNING: MAGNET HAZARD – Product contains (a) small magnet(s) | Required on applicable products sold in the US. Should be accompanied by additional text: Swallowed magnets can stick together across intestines causing serious infections and death. Seek immediate medical attention if magnet(s) are swallowed or inhaled | 32 | |
| 12 | No magnet hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 46 | |
| 13 | WARNING – Flashing hazard | Product flashes, flickers or includes high-contrast static or moving patterns which may cause discomfort or seizures in people with photosensitive epilepsy | 46 | |
| 14 | No flashing hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 46 | |
| 15 | WARNING – Sound hazard | Product makes loud, sudden, repetitive or other sounds which may trigger seizures in sensitive people | 51 | |
| 16 | No sound hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 51 | |
| 17 | WARNING – Motion simulation hazard | Products simulates (via visual effects) the experience of motion, which may cause nausea in sensitive people | 51 | |
| 18 | No motion simulation hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 51 | |
| 21 | WARNING – California Proposition 65 carcinogenic, teratogenic or other reproductively harmful chemical hazard | Required on applicable products sold in California. Must be accompanied in <ProductFormFeatureDescription> by specific additional text as displayed on product or packaging. For example, “WARNING: This product can expose you to chemicals including [chemical name], which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov”. Note long-form warnings should be used here, even if a short form warning is used on the product or packaging | 46 | |
| 22 | No California Proposition 65 hazard warning necessary | To be used when a supplier wishes to make a clear statement that no such warning is applicable to product | 46 | |
| 23 | California Proposition 65 chemical name | <ProductFormFeatureDescripton> carries the name of chemical that is the subject of a warning, taken from the list at www.p65warnings.ca.gov/chemicals | 48 | |
| 24 | Flashing risk unknown | Flashing present but risk unknown or unassessed | 66 | |
| 25 | Sound risk unknown | Sound present but risk unknown or unassessed | 66 | |
| 26 | Motion simulation risk unknown | Motion simulation present but risk unknown or unassessed | 66 | |