All containers meet one of three levels of pre-cleaning.

These high-density polyethylene bottles include polypropylene closures with F-217 PE liners.

Level III indicates that containers have not received an EPA washing treatment. Level II indicates that each case of containers has been custody sealed and lot number labeled for traceability to the enclosed Statement of Compliance. Level I pre-cleaning is the same as Level II, but instead of a Statement of Compliance, a Certificate of Analysis is provided indicating that the containers received full EPA quality assurance treatment.