Section No. 1--General Rules (Rev.-9-1984)
The above recommended minimum number of notches or crimps are based on current general
recommendations of high tension banding manufacturers on the basis of tensioning and sealing tools being in proper
operating condition. A lesser number of notches or crimps may be used provided the shipper can demonstrate that the
joint has the minimum strength shown in table under column "Minimum Joint Strength-Pounds."
The following seals are acceptable with three (3) crimps or notches on 2 in. x .044 in. and 2 in. x .050 in.
Uncoated-Dry, Coated-Not Waxed, high tension bands.
In all cases, a sufficient number of notches or crimps must be used to achieve the minimum joint strength-
pounds as shown in the column headed "Minimum Joint Strength-Pounds" except that a minimum of 2 pairs of notches
or crimps are acceptable on bands forming a loop joint at point of anchorage. (See Sketch 3.)
Users of tensioning and sealing equipment should be properly instructed in the correct use of these tools.
It is recommended that users insure that the tools used for tensioning and sealing are compatible with the type of high
tension bands and seals used. The compatibility of tools and materials should be verified by checking the strength of
sealed joints at periodic intervals.
Following are illustrations of notch and crimp types of seal joints:
High tension band sizes 1 1/4" and 2" used for load securements, as specified under appropriate figures or
in the General Rules, are to be marked to indicate manufacturer's or Supplier's name and the letters "AAR" to show
compliance with the requirements of the A.A.R. Rules Governing the Loading of Commodities on Open Top Cars.
Markings shall consist of the letters "AAR", the manufacturer or distributor's name, or abbreviated name, or
registered trade mark, or symbol. or AAR code consisting of two digits. Markings shall be in characters not less than 3/8
high for steel die imprint and not less than 1/4 " high for paint, ink surface printing or embossing, spaced not more than 5
Method used to code bands for identifying manufacturer or supplier is to be reported to tile A.A.R. Open
Top Loading Rules Committee and will be listed under this rule.