Assigning codes The Freq code in a record should agree with the Regl code in that record. See field 310 and field 321 for more information.
Known irregular items. If you know the item is irregular, use blank in Freq and x in Regl .
Unknown frequency, unknown irregularity. If you do not know the frequency, and the item is not known to be irregular, use u for both Freq and Regl .
Complete in one volume, frequency given. If a serial is complete in one volume and frequency is given, follow the general instructions for Freq and Regl .
Complete in one volume, no frequency. If a serial is complete in one volume and no frequency is given, use u for both Freq and Regl .
Ceased publication. If the item has ceased publication, use the latest frequency in Freq.
Reproductions. Use the code for the frequency and regularity of the original. Use field 539 subfields ‡e and ‡f for frequency and regularity of the reproduction.
One-time reproduction. Use u for field 539 subfields ‡e and ‡f.
Inadequate expression by Freq and Regl codes. Use field 310 for current frequency if Freq and Regl codes cannot adequately express the frequency or if the beginning date of the current frequency does not coincide with the beginning date of publication. (See field 310 for more information.)
If you are using field 310, use the closest available code in Freq. If no close code is available, use z. The phrases two issues yearly, four issues yearly, six issues yearly, and twelve issues yearly are used in field 310 for serials issued in the stated number of issues, but not appearing at regular intervals. If the item is issued on a regular semiannual, quarterly, bimonthly or monthly schedule, the appropriate Freq code is sufficient. The Regl code is r.
|Field 310 ||Freq ||Regl |
|Two issues yearly ||f ||x |
|Four issues yearly ||q ||x |
|Five issues yearly ||q ||x |
|Six issues yearly ||b ||x |
|Seven issues yearly ||b ||x |
|Eight issues yearly ||b ||x |
|Nine issues yearly ||m ||x |
|Ten issues yearly ||m ||x |
|Eleven issues yearly ||m ||x |
|Twelve issues yearly ||m ||x |
|Quinquennial ||z ||x |
Frequency varies note. If the record has a "Frequency varies" note in field 321, use z in Freq and x in Regl .
Cumulations. If the record describes a serial that cumulates, use the code in Freq for the frequency of issue, including cumulation. Describe the frequency of issue and cumulation in field 310. Use the appropriate Regl code ( r, n, x or u). If the serial is regular and the cumulation is a regularly numbered issue, use r in Regl . If the serial is regular and the cumulation is an extra issue, use n in Regl .
|Freq: || || ||b |
|Regl: || || ||r |
|310 || || ||Bimonthly, with the last issue being cumulative for the year |
|Freq: || || ||m |
|Regl: || || ||n |
|310 || || ||Monthly (except July and August) |