Your regular update for technical and industry information

Your regular update for technical and industry information

USA: Oregon added five substances to HPCCCH List


Oregon recently revised1 its Toxic Free Kids Act by adding five substances to the list of High Priority Chemicals of Concern for Children’s Health (HPCCCHs). This will apply to the reporting due on 1 January 2024 for products that are sold or offered for sale in 2022 and 2023. 

As required by Oregon’s Toxic Free Kids Act, the Oregon Health Authority (OHA) is required to review and consider revision of the HPCCCH list. Table A shows the newly added HPCCCHs. The practical quantification limits (PQL) and methods for the new substances were also published.  

In addition, the OHA published a permanent rule to clarify reporting requirements. The concentration of HPCCCHs should be calculated by component level instead of the whole product and the highest concentration should be reported if there are multiple concentrations for a given unit in a particular product category. This already applied to 1 January 2022 biennial notifications for products sold or offered for sale in Oregon in 2020 or 2021.

Table A: Newly added HPCCCHs

Substance name

CAS no.

Potential application 

Dicyclohexyl phthalate(DCHP) 


Used in the manufacturing of plastisol (sealant compounds and textile printing); 

Used in the manufacturing of compounds for PVC, rubber and plastic compounds (use as co-plasticizers)

Diisobutyl phthalate (DIBP)


Used as plasticisers. Sometimes used as a substitute for dibutylphthalate (DBP).

Ethylhexyl diphenyl phosphate (EHDPP)


Primary used as a flame retardant and plasticizer in flexible PVC material; 

Other uses e.g. rubber, polyurethanes and adhesive

Bisphenol F


BPF is used as a replacement for BPA in epoxy resins used to line food cans and in polymer plastics

Chlorinated paraffins


Used as plasticizers and a flame retardant in plastics, especially PVC


[1]  Oregon’s Toxic Free Kids Act

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