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Candidate Chemicals List

Candidate Chemical Database - Search for chemicals or download the candidate chemical list

What is the Candidate Chemicals List?

DTSC developed an informational list of Candidate Chemicals based on established authoritative lists. Priority Products must include a chemical from the Candidate Chemicals List. If a Candidate Chemical in a product raises concerns, DTSC must evaluate a variety of criteria, including adverse impacts and exposures, before proposing it as a Priority Product.

A Candidate Chemical must exhibit a hazard trait and/or an environmental or toxicological endpoint and is either 1) found on one or more of the authoritative lists specified in section 69502.2(a), or 2) it is listed by DTSC using the criteria specified in section 69502.2(b). Click here to view section 69502.2.

DTSC posts the Informational list of Candidate Chemicals on its website and updates the list quarterly to reflect changes in the authoritative lists, which are updated by their authoritative organizations (section 69502.3(a)). In the event there is a discrepancy between the criteria in section 69502.2 and the Informational Candidate Chemicals List, the regulation takes priority. To date, DTSC has not added a chemical to the Candidate Chemicals List using the criteria specified in section 69502.2(b).

How will the Candidate Chemicals List Change over Time?

The Candidate Chemicals List is updated when there are changes to the authoritative lists. DTSC reviews and updates the Informational List quarterly to reflect these changes. Two of the authoritative lists (the 13th Report on Carcinogens, and the Centers for Disease Control 4th National Report) refer to specific versions of published reports. Chemicals added to subsequent reports do not become Candidate Chemicals. DTSC may follow the activities of these authoritative organizations and may add subsequent reports by revising the SCP regulations.

DTSC may add individual chemicals or chemical source lists to the Candidate Chemicals list, or remove them by adopting new regulations using the criteria in section 69502.2. These revisions may be a result of DTSC research or a petition submitted by an external stakeholder. Anyone wishing DTSC to revise the Candidate Chemicals list may submit a petition. DTSC will add to or remove Candidate Chemicals from the Informational List after regulations have been adopted and they take effect.

Contents of the Informational List

The Informational Candidate Chemicals List is a compilation of all chemicals identified on the authoritative lists. Since the authoritative lists are dynamic, DTSC updates the informational list quarterly. In the event there is a discrepancy between the criteria in section 69502.2 and the Informational Candidate Chemicals List, the regulation takes priority.

The Informational list includes the chemical name, the Chemical Abstracts Service Registry Number (CAS RN), and the chemical's group name, if applicable. It also includes the authoritative list name and hazard traits which demonstrate why the chemical is listed.

Authoritative lists include entries that are not chemicals, which are not included in the Informational Candidate Chemicals list. Examples of non-chemical entries include turbidity and other physical attributes that impair water bodies, and food, such as Chinese salted fish.

Some authoritative lists include chemicals that are most commonly used as pesticides and prescription drugs, which are statutorily excluded from the definition of "consumer product." While they are outside the scope of the SCP program, they are included in the Candidate Chemicals Database and noted as such for informational purposes. These chemicals may be relevant to the SCP program if they are used in products other than prescription drugs or pesticides. Also, some authoritative lists include chemicals that are unlikely to be in "consumer products" such as radioactive materials, and natural toxins (e.g., aflatoxins), which are also noted in the database.