Scully Signal Company
Flammable and Combustible Liquids Code
Tank Vehicle and Tank Car*
Loading through open dome
Tank Vehicle and Tank Car*
Loading through open dome
Loading through bottom
connections with atmospheric
venting
Loading through bottom
connections with atmospheric
venting
Loading through closed dome
with atmospheric venting
Loading through closed dome
with atmospheric venting
Loading through closed dome
with vapor control
Bottom loading with vapor
control. Any bottom unloading
1
2
1
2
1
2
2
2
Within 3 feet of edge of dome, extending in all
directions.
Area between 3 feet and 15 feet from edge of dome,
extending in all directions.
Within 3 feet of point of venting to atmosphere
extending in all directions.
Area between 3 feet and 15 feet from point of venting
to atmosphere, extending in all directions. Also up to
18 inches above grade within a horizontal radius of
10 feet from point of loading connection.
Within 3 feet of open end of vent, extending in all
directions.
Area between 3 feet and 15 feet from open end of
vent, extending in all directions. Also within 3 feet of
edge of dome, extending in all directions.
Within 3 feet of point of connection of both fill and
vapor lines, extending in all directions.
Within 3 feet of point of connections extending in all
directions. Also up to 18 inches above grade within
horizontal radius of 10 feet from point of connection.
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Figure 1 — Flammable and Combustible Liquids Code Table
* When classifying extent of area, consideration shall be given to fact that tank cars or tank vehicles may be
spotted at varying points. Therefore, the extremities of the loading or unloading positions shall be used.