Compliance Requirements

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Stage I Vapor Recovery Requirements for Gasoline Delivery Vessels
If the owner or operator of a gasoline delivery vessel wishes to load or unload their vessel in the St. Louis or Kansas City ozone maintenance areas, it must be equipped with proper Stage I Vapor Recovery. In addition, if the gasoline delivery vessel loads at a bulk plant or terminal regulated by 40 CFR Part 60, Subpart XX or Part 63, Subpart R, the vessel must
be equipped with Stage I Vapor Recovery.

Testing Requirements for Gasoline Delivery Vessels
Gasoline delivery vessels that operate in the St. Louis and Kansas City ozone maintenance areas are required to test annually to demonstrate compliance with the test method specified in 40 CFR Part 63, Subpart R, Section 63.425(e). Once a gasoline delivery vessel successfully passes annual testing, the owner or operator of the vessel must keep a copy of the passing test in the cab of the vessel at all times.  As of September 2010, it is no longer necessary to submit these test results to the department.

Illegal Loading/Unloading and Enforcement Actions
Missouri State regulations require delivery vessels to utilize Vapor Recovery equipment when loading the vessel at a Bulk Plant or Terminal and unloading at a facility inside the St. Louis or Kansas City Ozone Areas. Drivers must use one vapor return line per gasoline product line during Stage I Vapor Recovery gasoline deliveries. If the facility only has one vapor port, regardless of the number of product ports, the driver may only load one product at a time.  Vapor return lines must be no smaller than three inches in inside diameter and product lines must be no larger than four inches in inside diameter.

The department will take enforcement action against gasoline delivery companies failing to properly use Stage I Vapor Recovery when unloading gasoline. Delivery vessel drivers and facility owners or operators may also be held responsible for illegal delivery violations.