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==171 CODED DATA FIELD: COLLECTION MANAGEMENT==
This field contains coded data applicable to all types of holdings records, that indicates the extent and
the consultation and retention policy of the described unit.
Occurrence
Mandatory. Not repeatable.
Indicators
Indicator 1: blank (not defined)
Indicator 2: blank (not defined)
Subfields
$a Coded data. Not repeatable.
Notes on Field Contents
$a/0 General retention policy
# =
a =
z =
Information not available or not applicable
Permanently retained
The holding institution permanently keeps all pieces of the reported unit.
volumes). Specific time or part units may be recorded in field position 2-4.
Sample issue retained
Not retained
Other
$a/1 Availability
#
a
=
=
Information not available
In process
Unknown
Other
$a/2-4 Specific retention policy
Three character positions that indicate the specific parts of the item that are retained when field
position 1 contains code d.
### No specific retention
$a/2 Policy type
a =
b =
Latest
Indicates that the latest time or part unit is retained (including the current issue).
$a/3 Number of units
Contains a one-character number (1-9) that specifies the number of time or part units that are
retained. When the policy retention code in character position 2 is Latest (code b), the number
$a/4 Time or part units
a
b
x
= Information not available
If the reporting institution has difficulty in obtaining valid information on the general
completeness of its holdings the value “#” would be recorded. For continuing resources
= Not applicable
value used for single -part unit.
$a/6-8 Number of copies reported
Three character positions that indicate the number of copies reported. Right justified with zero
fill.
Related Field
302NOTES PERTAINING TO CODED INFORMATION
Examples
EX 1
171 ##$adba3a#001
Item available ($a/1 = b), with limited retention ($a/0 = d) that consists of the previous ($a/2
= a) three ($a/3 = 3) weeks ($a/4 = a) being retained. Continuing resources unit with limited
retention ($a/5 = #), the information is reported to 1 copy ($a/6-8 = 001).
EX 2
171 ##$afb###x001
Item not retained ($a/0 = f), available ($a/1 = b) without specific retention ($a/2-4 = ###),
used for a single -part unit ($a/5 = x), the information is reported to 1 copy ($a/6-8 = 001).