D.C. Mun. Regs. tit. 21, § 2403
Determination of Dispersibility
Effective Nov 14, 202572 DCR 012739Authority: District Department of the Environment Establishment Act of 2005, effective February 15, 2006 (D.C. Law 16-51; D.C. Official Code §§ 8-151.01 et seq.); the Water Pollution Control Act of 1984, effective March 16, 1985 (D.C. Law 5-188; D.C. Official Code §§ 8-103.01 et seq.); and the Nonwoven Disposable Products Act of 2016, effective March 11, 2017 (D.C. Law 21-220; D.C. Official Code §§ 8-521 et seq.). Source: Final Rulemaking published at 72 DCR 012739 (November 14, 2025).District of Columbia, Office of the Secretary
2403.1 To be considered dispersible, a nonwoven disposable product must pass the Slosh Box Test of the International Water Services Flushability Group (IWSFG) 2020: Publicly Available Specifications (PAS) 3 as published in December 2020 (IWSFG PAS3 2020). A copy of the document is provided on DOEE’s website at https://doee.dc.gov.
SOURCE: Final Rulemaking published at 72 DCR 012739 (November 14, 2025).