PROCEDURES FOR PROCESSING LOADING
DRAWINGS AND SPECIFICATIONS
(The following information is extracted from AR 55-355 Military Traffic Management Regulation.)
1. Responsibility. The Commander, MTMC as the single manager for land transportation, is responsible for the review
and processing of military loading drawings and documents as well as technical traffic matters involving the movement of
Department of Defense material on open top railcars. This function has been delegated to the Commander, Military
Traffic Management Command Transportation Engineering Agency (MTMCTEA) who acts as the single point of contact
between military services and civilian regulatory agencies on loading matters. Department of Defense agencies desiring
reviews and processing of loading drawings should forward them to the Commander, MTMCTEA, ATTN: MTT-TRC, PO
Box 6276, Newport News, Virginia 23606.
2. Research and Development (R&D). When practicable, shippers should develop appropriate loading procedures
during research and development (R&D) stages, and furnish pertinent data in according with paragraph 213009b, AR 55-
355. Such advance information will be reviewed by MTMCTEA for adequacy and will help expedite action during the
subsequent test loading phase.
3. Drawings, Specifications, and Photographs. In order to have loading figures included in the Open Top Carloading
Manual the following must be submitted to MTMCTEA:
Twelve copies of a drawing depicting the loading method. The drawing must clearly show the plan, end, and side
views of the load with all items of securement identified by capital letters. The letter "A" will be used to identify the brake
wheel clearance. The letter "I" will not be used due to its similarity to the numeral "1." The vertical dimension of the
drawing will be 17 inches and the horizontal dimension, 22 inches. A title box will not be shown on the drawing.
Twenty-two sets of specifications, which must list the items of securement by the capital letters shown on the
drawing. Beside each capital letter, the specification will include the required number of pieces, their description, and the
manner in which they are secured to the car, other items of securement, or the lading. The vertical dimension of the
specifications will be 101/2 inches and the horizontal dimension, 8 inches. Reference to figures in the Open Top
Carloading Manual will provide further guidance as to the required format.
Two sets of photographs, 8 x 10 inches, showing each side and each end of the load, as depicted by the
drawings and specifications.
4. Military Loading Drawings for Inert Missile Components or Ground Support Equipment Not requiring Figures in the
Open Top Carloading Manual. Loading methods for inert missile components or ground support equipment that require
approval of AAR, but will result in military loading drawings in lieu of loading figures in the Open Top Carloading Manual,
require submittal of the following:
One master tracing and 11 print copies of a size compatible to the logistic requirements of the military service
but not smaller than 17 x 22 inches, depicting the load. An approval box 2 x 3 inches, will be shown in the upper right
corner within the border of the drawing as follows:
Separate specifications and photographs are not required; however, the Bill of Material, Material Specifications,
General Notes, and Key Numbers must be included in the drawing. The items of securement may be identified by either
capital letters or numerals, which must be listed under the Key Numbers. The General Notes must make reference to
applicable rules contained in the Association of American Railroads "General Rules Governing the Loading of
Commodities on Open Top Cars." Also, General Notes may include other pertinent information, such as dimensions,
weight, methods of tensioning cable, tiedown angles, and car lengths and widths. Material specifications must meet the
requirements outlined in the general rules of the Open Top Carloading Manual.
5. Military Loading Drawings for Explosives and Other Dangerous Articles. Loading methods, for explosives and other
hazardous materials, which will require approval of both the Bureau of Explosives and Open Top Carloading Committee,
AAR, will require submittal of the following: