33 C.F.R. § 159.85 Sewage removal.
Title 33 - Navigation and Navigable Waters
The device must be designed for efficient removal of nearly all of the liquid and solids in the sewage retention tank.
Title 33: Navigation and Navigable Waters
PART 159—MARINE SANITATION DEVICES
Subpart C—Design, Construction, and Testing
§ 159.85 Sewage removal.