S. Rept. 116-235: Portable Fuel Container Safety Act of 2019, Report to Accompany S. 1640, Including Cost Estimate of the Congressional Budget Office, June 23, 2020 [open pdf - 424KB]
From the Purpose of the Bill: "The purpose of S. 1640 is to direct the U.S. Consumer Product Safety Commission (CPSC) to issue a final rule to require flame mitigation devices on portable fuel containers that impede the propagation of flame into the containers."
S. Rept. 116-235; Senate Report 116-235
U.S. Government Publishing Office: http://www.gpo.gov/