Bulk Systems. The piping systems are any pipeline or part thereof used to convey liquid petroleum
products, including heating fuel and hydrocarbon missile fuels. These may be classified as tank car and tank
truck loading and unloading connections; storage tank valves; pump manifold and valves; cross-country
pipelines and their points of tie-in with pumping stations; oil tankers' connections and manifolds; and other
similar dispensing outlets. Storage systems include all exposed fixed storage tanks except aircraft and
Bulk petroleum products and hydrocarbon missile fuels are classified by groups. This method assigns a
yellow band (or group of yellow bands) to each of eight groups or similar type products in a distinctive and
conspicuous manner as a visual aid and shipment to the written identification. The groups and number of
One narrow band
Two narrow bands
Three narrow bands
Four narrow bands
Heavy fuel (black oils)
Five narrow bands
Sign (refer to FM 10-67-1 Concepts and Equipment of Petroleum
Thermally stable jet fuels
Wide band-narrow band-wide
One wide/one narrow band
The title shall identify the contents by complete nomenclature, type/grade or product, and military symbol (if
A NATO symbol number indicates that the product is interchangeable or has an intended use with a
particular product produced in one or more of the NATO participating nations. Systems handling products for
which a NATO symbol has been established, and are located in an area subject to servicing ground, sea, or
air equipment of NATO countries will, in addition to the NATO symbol, include the appropriate U.S. military
symbol. Should the product become off-specification in any respect in any excess of the NATO allowable
deterioration limits before use, a line of color contrasting with the NATO symbol and the background color
will be drawn diagonally across and beyond the rectangle enclosing the NATO symbol. The thickness of this
line will be such that it is clearly visible and the NATO symbol is then considered canceled and the product
may, if desired, be considered as an emergency substitute to the original product and will be used only under
technical advice. The line or system will be promptly remarked when the deteriorated product is replaced.
NATO symbols are:
Yellow is assigned as a primary warning for all flammable materials in accordance with the provisions of
the basic code, MIL-STD-101. Black and white are used to mark titles across yellow bands. Markings (which
include titles, bands, and arrows) will be applied by painting and stenciling or, if desired, by means of decals,
elastomeric film, or reflective sheeting. Markings shall be applied at all receiving concessions; at all
dispensing outlets; at all tank fill and discharge lines; at locations where line connections are made to
manifolds; and at any other locations necessary to assure ready identification of the product in the system.
On 5-gallon cans:
Use 3/4-inch letters.
Stencil the front of each can with the nomenclature, NATO code number, and fill dates.
On 55-gallon drums:
Use lettering at least 3/4 of an inch tall.
Stencil the top of each drum with the nomenclature, NATO code number, weight or volume of contents,
and fill date.
On 500-gallon collapsible drums:
Stencil both ends of each drum with the nomenclature, weight or volume of contents, and the NATO
code number of the product in the drum.
Stencil both ends of each drum with the fill date when using drum for temporary storage of fuels.
Stencil both ends of each drum with the word "flammable."