An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Safer Choice

Safer Choice Criteria for Colorants, Polymers, Preservatives, and Related Chemicals

These Safer Choice Criteria were developed based on the Master Criteria to identify safer colorants, polymers, preservatives and related chemicals, which have preferred human and environmental health profiles. Since longevity is an important functional characteristic of most chemicals in these classes, the key to a safer profile rests with their inherent hazard properties.

To review a polymer for use in labeled products, Safer Choice requires information on molecular weight (MW), percent of residual monomers and oligomers, and monomer ratios if applicable (e.g., for block copolymers). Closer review of potential hazards may be required if the average MW is greater than 10,000 daltons, or if the low MW portion (percent MW that is <1,000) is more than 5%.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.