MIL-STD-130 Identification Marking Of U.S. Military PropertyThis standard provides the item marking criteria for development of specific marking requirements and methods for identification of items of military property produced, stocked, stored, and issued by or for the Department of Defense DoD. This standard addresses criteria and data content for both free text and machine-readable information MRI applications for identification marking of U.S. military property.

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MIL-STD-130N

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APPENDIX A

a. The enterprise identifier used in the UII data set identifies the enterprise that assigned the UII to the item. The UII data set machine-readable code does not contain more than one enterprise identifier if ambiguity in constructing the UII would result.

b. The IAC is derived from the data qualifier for the enterprise identifier if it is not contained within an encoded data element. See Table V for a list of issuing agency codes for the six most commonly used enterprise identifiers.

c. Data elements not required to derive a UII remain discrete but may be contained within the same MRI mark or media as the UII data set required elements, provided that (1) all data elements contained in the MRI mark or media are properly identified with a data qualifier, (2) the added data elements do not introduce ambiguity when the UII is derived, and (3) the added data elements do not violate other business rules stated in the Department of Defense Guide to Uniquely Identifying Items.

d. The UII is derived from its discrete, component data set element(s) or the UII data set encoded as a single data element.

e. UII data sets encoded as single data elements that are sufficient to derive UIIs (that is,

18S, 25S, UID, UST, USN, and DoD recognized IUID equivalents) are always interpreted as the

UII regardless of any apparent ambiguity introduced by additional data elements in the symbol. f. The UII is unique worldwide (non-repeatable).

g. The UII is a non-parsable field, not to exceed 50 characters in length (excludes overhead characters). Overhead characters in the encoded data string, such as syntax and data qualifiers, are not part of the UII data set and are eliminated when the UII is derived. The source protocols for specific data qualifiers may be more restrictive than the allowable field lengths of these rules. For specific limitations on field lengths and usage, refer to ANSI MH10.8.2 for DIs, ANSI MH10.8.7 and GS1 General Specifications for AIs, and A4A CSDD for TEIs. The maximum field lengths for each of the UII data set elements are as follows:

(1) The IAC string of characters does not exceed three characters.

(2) The enterprise identifier string of characters does not exceed 13 characters, excluding the data qualifier.

(3) The original PIN or lot or batch number string of characters (including special characters) does not exceed 32 characters, excluding the data qualifier.

(4) The serial number string of characters (including special characters) does not exceed

30 characters, excluding the data qualifier.

NOTE: The sum total of the maximum number of characters for each of the possible UII data set elements shown above exceeds 50 characters. However, in order to meet the overall length limitation of 50 characters for the UII, it may be necessary to use field lengths for the original PINs, lot or batch numbers and serial numbers that are shorter than the maximum allowable field lengths for the individual data elements.