Leader/17 Encoding Level (Leader)
Codes:
USMARC defined:
The codes described below are used by LC, NLC, and CONSER members when inputting new records or adapting existing records.
1 Full level, material not examined
2 Less-than-full level, material not examined [Not used]
8 Prepublication level [NSDP use only]
u Unknown [Not used]
z Not applicable [Not used]
NLC defined:
OCLC defined:
OCLC encoding level codes "I" and "K" are input by OCLC members. Codes "L" and "M" identify records tape-loaded into the OCLC online union catalog. If any such records are subsequently authenticated and the encoding level is not changes, the alphabetic code is converted to the equivalent numeric code or "#" upon output to LC.
I Full level cataloging input by OCLC participating library
K Less-than-full cataloging input by OCLC participating library
L Non-LC and non-NLM cataloging added from tape
M Less-than-full cataloging added from tapeloading
Description/Instructions:
The encoding level indicates the degree of completeness of the machine record. Five numeric values are defined in USMARC that are used in CONSER records (#, 1, 5, 7, and 8); one numeric value is defined for use by NLC (0). Four alphabetic encoding levels are defined for use in the OCLC online union catalog.
USMARC codes are used by LC, NLC, and all CONSER members. The order codes is hierarchical, such that a lower level code may only be replaced with a higher level code or an OCLC code may be replaced by a USMARC code of the same level. For instance, code "I" may be replaced with code "#". However, a higher level code may not be replaced with a lower level code; e.g., code "I" could not be replaced with code "K".
Related fields, etc.
See also:
