SuDoc numbers are made up of the STEM (all the letters/numbers/punctuation BEFORE the colon) and the SUFFIX (everything that FOLLOWS the colon).
SuDoc classes are arranged alphabetically based on the leading letter(s) in the stem. SuDoc classes file alphabetically no matter how many letters are used (ex. L comes before LC; N comes before NAS which comes before NS).
The number in the stem between the period and colon is a whole number (ex. HS 1.2: comes before HS 1.15:).
Both before and after the colon, an empty space will file before a space that has a letter or number (i.e. “nothing” before “something”).
FILING RULES | SAMPLE SUDOC SEQUENCE |
: before / Y4.Sci2: |
T22.19:M54 T22.19:M54/990 T22.19/2:P94 T22.19/2:P94/2 T22.19/2:V88/retest T22.19/2:V88/retest/989 T22.19/2:V88/test/989 T22.19/2:V88/test-2/988 T22.19/2:V88/test-2/989 T22.19/2:V88/989/student/militia T22.19/2:V88/989/student/spanish T22.19/2:V88/989/student/text T22.19/2:V88/990/student/spanish T22.19/2:V88/2 T22.19/2:V88/2/989
|
- before / Y4.Sm1: |
|
letter before date I 29.2:G76/4/cult. L37.2:Oc1/2/conversion |
|
date before number J29.2:D84/982 L36.202:F15/990 |
|
letter before number Y3.El2/3:B21/2 Y3.M58/summ. Y4.Ed8/1:101-Q Y4.N95:N95/pts.1-15 |
|
nothing before something GS1.2:So2 L2.3;16: Y4.F76/1:C42/4 Y4.F76/1:C76/13/982 Y4.F76/2:Af8/12 Y4.F76/2:S.prt.101-105 Y4.G74/7:N21/5 |