008/18 (006/01) Continuing resources: Frequency

Character position definition and scope:

A one-character alphabetic code that indicates either the frequency of an item, or, in the case of integrating resources, updates to an item. This element is used in conjunction with 008/19 (Regularity) and is based on the information found in field 310 (Current Publication Frequency). The frequency codes (see Codes) sometimes do not accurately reflect the frequency as given in field 310. This is generally the case when the frequency is expressed in numbers per year (e.g., 4 no. a year). In these cases, the closest applicable frequency is used according to the following chart, and 008/19 (Regularity) is coded as x. A fill character ( | ) is used when no attempt has been made to code this 008 position.

Issued or Updated:	Frequency code:
Two no. a year	f (semiannual)
Four no. a year	q (quarterly)
Five no. a year	q (quarterly)
Six no. a year	b (bimonthly)
Seven no. a year	b (bimonthly)
Eight no. a year	b (bimonthly)
Nine no. a year	m (monthly)
Ten no. a year	m (monthly)
Eleven no. a year	m (monthly)
Twelve no. a year	m (monthly)

If an item ceases publication after one issue, give the intended frequency (and regularity) if known. Otherwise, code both frequency and regularity as u (unknown).

Example:

008/18 a

008/19 r

300 ## $a1 v. ;$c28 cm.

310 ## $aAnnual

362 0# $a1984.

If an item is issued according to one frequency, but cumulates to another, the frequency (and regularity) are coded without regard for the cumulation.

Example:

008/18 b

008/19 r

310 ## $aBimonthly, with the last issue being cumulative for the year

A regular-print reprint or photoreproduction item is coded for the frequency (and regularity) of the reprint or photoreproduction -- not those of the original. In most cases, both frequency and regularity will be coded as u.

Record requirements for National-level records: Mandatory; for Minimal-level records: Optional.

Guidelines for applying content designators:

Code:	Description:
#	No determinable frequency
a	Annual
b	Bimonthly
c	Semiweekly
d	Daily
e	Biweekly
f	Semiannual
g	Biennial
h	Triennial
i	Three times a week
j	Three times a month
k	Continuously updated
m	Monthly
q	Quarterly
s	Semimonthly
t	Three times a year
u	Unknown
w	Weekly
z	Other
\|	No attempt to code

Content designator history:

k - Continuously updated [new, 2001]