Acquisition Status

A specific part of the Serial Holdings information where a library may indicate the current receipt status of the title. Valid values are:  Currently receiving (4)  No longer acquiring (5)  Note: Numbers in parentheses represent both USMARC and ANSI code values.


System used by some libraries to provide Internet document delivery. Ariel software runs on a  workstation comprising a PC, a scanner and printer. It provides a method for scanning paper-based literature and converting it to bitmapped image form for both interlibrary loan and document delivery to the desktop.

Base Fee

The standard fee charged for the associated service.

Batch Lend

DOCLINE feature that allows libraries to quickly process requests with the same action. The action can be either \"filled as requested\" or \"rejected\" with a single rejection reason. Batch Lend also provides the ability to use a barcode scanner to enter the request number. In Batch Lend, the user types or scans the request number in barcode font to process the request.

Batch Update

A method of updating all of a library's holdings records from another source.  Batch Update allows a user to input data into another system in a standard OCLCMARC or MARC21 format and transfer the data into SERHOLD.  The batch update capabilities that DOCLINE will support in the future are: OCLCMARC to SERHOLD; SERHOLD to OCLCMARC; and MARC21 to SERHOLD.

Borrowing Library

The institution initiating an interlibrary loan request.


A section within the routing table that contains the libraries to which the requests may route.  The routing table contains nine cells. Each cell may contain up to 20 libraries.


The Canada Institute for Scientific and Technical Information, one of the world's major sources for information in all areas of science, technology, engineering and medicine.  CISTI coordinates DOCLINE activities for Canada.

Closed Library

A library that has closed and no longer provides services including DOCLINE.  A closed library may have holdings listed in Serial Holdings since the holdings may need to be merged with another library.  Requests will not route to closed libraries.

Commitment Level

A code in the Serial Holdings record indicating a specific commitment to retain the title.  Valid values are:  (Z) No special commitment to retain title  (N) Will hold title for national commitment  (R) Will not cancel title without notifying resource libraries  (S) Will hold title for state commitment  (C) Will hold title for consortium/local commitment  Note: Letters in parentheses represent Serial Holdings code values.


A value in the Serial Holdings record, the purpose of which is to provide guidance as to the extent of the institution's holdings. The value used is based on the institution's own estimation of its holdings at the time of recording.  Valid values are:  (0) Information not available or Retention is limited  (1) Complete (95%-100% held)  (2) Incomplete (50%-94% held)  (3) Very incomplete or scattered (Less than 50% held)  Note: Numbers in parentheses represent both USMARC and ANSI code values.

Country Code

The MARC code for the country listed in the Institution record.  The Country Code is assigned by the system.

Demo Library

A \"library\" that is used by the RMLs or NLM for demonstration or testing purposes.  There are 32 Demo Libraries, at least one in each region.


The National Library of Medicine's (NLM) automated interlibrary loan (ILL) request routing and order referral system. The system was developed to improve document delivery service by linking the holdings of member libraries and routing the ILL requests quickly throughout the National Network of Libraries of Medicine (NN/LM) and Canada.


An indicator in the Institution record for an institution that is currently an active DOCLINE participant.  Requests route to active participants.  The \"Last changed date\" is the date the DOCLINE active status was last changed whether it was active or inactive.  This field is maintained by NLM and RML staff only.  Users who desire to change this indicator must contact their RML (1-800-338-7657).

DOCLINE Non-active

An indicator in the Institution record for an institution that has been temporarily deactivated due to a variety of reasons such as temporary library closing or staff shortage or a closed library.  Requests will not route to a library that has been deactivated.  This field is maintained by NLM and RML staff only.  Users who desire to change this indicator must contact their RML (1-800-338-7657).

DOCLINE Non-participant

An indicator in the Institution record to identify libraries that are not DOCLINE participants.  If such a library plans to become a participant in the near future, it may add holdings to Serial Holdings in preparation for becoming a full DOCLINE participant.  Thus, it is possible to have holdings in Serial Holdings and not be a DOCLINE participant.  Requests will not route to a library that is a non-participant.

DOCLINE Participant

An indicator in the Instituion record that identifies an institution as a participant in the DOCLINE system.


DOCLINE listserv available from the National Library of Medicine. The list is unmoderated, but is closed to all except DOCLINE users. Its purpose is to provide NLM with an easy way to communicate new information and broadcast messages to DOCLINE users. Additionally, it provides a forum for DOCLINE users to communicate with each other and NLM about any issue related to DOCLINE, Serial Holdings or document delivery.


Electronic Fund Transfer Service - operational since 1996 in New England, is a transaction-based electronic billing system for interlibrary-loan (ILL) and document delivery.

Encoding Level

A code in the Serial Holdings record to indicate the holdings statement level according to ANSI/NISO Z39.71-1999.  Valid values:  2 (no specific retention policy or volume or year holdings information is recorded)  3 (retention policy and volume, year, or limited retention information is recorded)  All Level X holdings from the old Serial Holdings system were transferred to the new system at Level 2.  All holdings added or updated online are Encoding Level 3.  Level X records transferred from the old Serial Holdings system and title changes when the new title has an unknown beginning publication date will have an Encoding Level 2.


Cross-regional library group for DOCLINE libraries that would like to participate in free, reciprocal lending. To join, libraries must have holdings in Serial Holdings and agree to exchange free interlibrary loans with other participants.


InterLibrary Loan

Inputting Library

Library which inputs ILL requests on behave of another library.  Libraries inputting for another library must use the Requestor function of DOCLINE found under Requests/Borrow.  After changing the Requesting LIBID, the inputting library will receive a message indicating the LIBID and name of the requesting library for whom they are entering requests. If the requesting library is an active DOCLINE participant, the ILL contact and phone number will be displayed.

ISO ILL Protocol

A protocol which provides users with the ability to exchange messages (requests) between proprietary systems.  Network libraries that are using an ILL management system that is ISO-compliant and has been tested with DOCLINE, are eligible to begin using the ISO ILL Protocol to communicate between your ILL system and the DOCLINE system without logging into the DOCLINE system.    Additionally, DOCLINE libraries will be able to send messages from DOCLINE to ILL protocol compliant systems.

LD Profile

Loansome Doc address, contact information, and service information.  (1) Institution, LIBID, Department, Street, City, State/Province, Zip/Mail code and Country; (2) Loansome Doc Contact Name, Phone Number, and Email Address; (3) Services and Charges (indicated by Yes or No) to: Affiliated Health Professionals, Unaffiliated Health Professionals, International libraries, and non-citizens (of the country in the library address).

Lending Library

The library that fills the Interlibrary Loan request.


A unique Library Identifier that is assigned to all libraries that use DOCLINE or borrow from NLM.  The LIBID consists of six alphabetic characters. For U.S. and Canadian institutions, the first two characters of a LIBID are the MARC 21 Geographical Code (U.S. State or Canadian Province code), and are followed by a \"U\" for U.S. or a \"C\" for Canada, and then three alphabetic characters which represent the institution's former Serial Holdings code.  The LIBID for other countries consists of the first two letters of the Universal Postal Union (UPU) code, followed by the letter X and three alphabetic characters.

Library Group

A group of libraries that have a relationship to each other and cannot be identified in any other way (e.g., All DOCLINE libraries in Maryland would not be considered a Library Group since a search can be limited by State). Library Groups are established by NLM and listed in DOCLINE. Any additions or changes to Library Groups must be submitted to the appropriate Regional DOCLINE Coordinator who will review the request prior to submitting it to NLM.

Library Group Code

The code assigned to the Library Group when it was created in DOCLINE.

Library Level

Four levels of membership in the NN/LM: Primary Access Library (PA), Regional Medical Library (RM), Resource Library (RS), and Other (OT).  Canadian libraries are classified as Other.

Library Type

A library's focus code that denotes: Hospital,  Academic, Public and Other.

Limited Retention

The number of months, years, or editions that are held if the library reports holdings for a limited time period.  Although Serial Holdings can now record months, year, or editions, DOCLINE interprets any months held as this year and any editions held as years held.

Loansome Doc

Feature of PubMed and the NLM Gateway used to order documents found in MEDLINE. It is available to users in the United States and internationally. A user can order articles from a list of citations retrieved from PubMed or the NLM Gateway by sending them to a library to request the full-text documents.

Loansome Doc Patron User ID and Password

A unique identification created by the user to make requests via the Loansome Doc feature of PubMed and the NLM Gateway.  If you forget your user ID or password, call your provider library.


NLM's online catalog of books, journals, and audiovisuals and access points to other medical research tools.

M/A/N Map

The M/A/N Map is a four-cell routing table used for routing monographs, audiovisuals, and serial titles not in LOCATORplus.  Because no holdings records are available for these items, requests do not route automatically. They route according to the institutions entered in a library's M/A/N Map. Requests will be routed to NLM after the institutions entered in the M/A/N Map, unless the requestor has selected \"Never Route to NLM\" as the \"NLM Delivery\" option. Any request placed via the Manual request function, (DOCLINE / REQUESTS / Borrow / Manual) will route according to the M/A/N Map.

Manual Request Method (MRM)

A feature that can be used when the article citation is not found in PubMed, and the journal, monographic, or A/V title sought is not in the LOCATORplus.  Because no holdings records are available for these items, requests do not route automatically.  Requests placed using the MRM route according to the institutions entered in a library's M/A/N Map in the Institution Routing Profile. When MRM is used, requests do not route automatically.  Requests will be routed to NLM after all of the listed institutions in the M/A/N Map, unless a user has selected \"Never Route to NLM\" as the NLM Delivery option.  The Manual request method should not be used until the user has confirmed that the item has no record in PubMed or LOCATORplus.

MARC 21 Format

The MARC 21 formats are widely used standards for the representation and exchange of data in machine-readable form.  The data provided from DOCLINE in MARC 21 format are holdings data from DOCLINE with some bibliographic data originally from NLM's online public access catalog, LocatorPlus.  Data output in MARC 21 format can be used by libraries that have the ability to import that data into a system that uses MARC 21 format.

National Union Catalog ID

A unique code assigned by the Library of Congress or the National Library of Canada to identify an organization.

Network Membership (Affiliate Member)

Affiliate Members are libraries, information centers, and resource centers that are called upon for health information by their users but do not meet criteria for full membership

Network Membership (Full Member)

Full Members are health science libraries and health information centers that are regularly staffed, have Internet access and health science collections, provide information services, and participate in DOCLINE

NLM Unique ID

The NLM Unique Identifier for a bibliographic record (taken from 035 subfield 9 USMARC field in LOCATORplus).


The National Network of Libraries of Medicine are programs carried out through a nationwide network of health science libraries and are information centers coordinated by the National Library of Medicine (NLM). It consists of eight Regional Medical Libraries (major institutions under contract with the National Library of Medicine), more than 140 Resource Libraries (primarily at medical schools), and about 4,700 Primary Access Libraries (primarily at hospitals). The Regional Medical Libraries administer and coordinate services in the network's eight geographical regions.

OCLC Number

The eight digit unique identifier assigned by OCLC for each bibliographic record.  The OCLC number is located in Locatorplus in the \"035 subfield\" after the term (OCoLC).  Not every Locatorplus record has an OCLC number.

OCLC Symbol

The unique 3 to 8 character symbol assigned to a library by OCLC.

Ordering Library

Library in your area with which you establish an account for the Loansome Doc service

Permanent Retention

Holdings that are kept indefinitely.

Physical Format

The form of the material (e.g., text, microfilm).


PubMed Identification number.


A World Wide Web (WWW) retrieval service developed by the National Library of Medicine (NLM). PubMed provides access, free of charge, to MEDLINE, a database of more than 10 million bibliographic citations and abstracts in the fields of medicine, nursing, dentistry, veterinary medicine, health care systems, and preclinical sciences.


A front-end system to DOCLINE created by Jay Daly in Brookline, Mass. It is not a product of the National Library of Medicine.

Reciprocal partner

An ILL partner with whom you have a prior explicit or implied agreement for ILL services.

Region Code

Identification numbers for the Regional Medical Libraries: 01 -Middle Atlantic Region; 02 - Southeastern/Atlantic Region; 03 -Greater Midwest Region; 04 - Midcontinental Region; 05 - South Central Region; 06 - Pacific Northwest Region; 07 - Pacific Southwest Region; 08 - New England; 20 - Canada; 99 -National Library of Medicine

Requesting Library

The library making an interlibrary loan request in DOCLINE.  The request can be placed by that library or by an 'inputting library' (a library which enters requests on behalf of another library).  The requesting library must have a Institution record, but they may or may not be a DOCLINE participant.  The inputting library must be a DOCLINE participant.

Retention Policy

A code found in the Serial Holdings record indicating a library's policy regarding keeping a title.  Valid values are:  Retained for a limited period (6)  Permanently retained (8)  Note: numbers in parentheses represent both USMARC and ANSI code values.


Regional Medical Libraries, NN/LM is composed of eight RML's that administer and coordinate services in the network's eight geographical regions. The RMLs provide general oversight for DOCLINE activites for their respective regions.  The Canada Institute for Scientific and Technical Information (CISTI) provides general oversight for DOCLINE activities in Canada.

Routing Profile

Standardized data about an institution required for interlibrary loan requests. The Routing Profile is stored in a library's Institution record.  This default DOCLINE routing profile displays on the Routing Instructions page in BORROW each time new requests are entered in the system.  DOCLINE's routing profile stores information such as the institution's ariel IP, the M/A/N map, and maximum ILL cost.

Routing Table

The libraries to which requests will route based upon holdings data.  Libraries establish routing tables based on the collections of journal holdings reported to Serial Holdings, and according to their own local routing patterns. Requests are routed only to libraries which are included in the stored routing table of the borrower and which are identified as holders of the requested material.

Serial Holdings

The National Library of Medicine's (NLM) database of machine-readable holdings statements for biomedical serial titles held by U.S. and selected Canadian libraries, primarily members of the NLM-supported National Network of Libraries of Medicine (NN/LM). These holdings statements are linked to NLM's authoritative bibliographic data in LOCATORplus.

Service Profile

Portion of the Institution record that contains information regarding services provided to various user groups.  This information is viewed in the Institution record when \"Display Results As\" is changed to \"Service Profile.\"  Displayed in three parts: (1) Institution, LIBID, Department, Street City, State/Province, Zip/Mail code and Country, ILL contact, ILL phone number, and Email address. (2) Access to the World Wide Web and ownership of a satellite dish. (3) Services and Charges (indicated by Yes or No) to: Affiliated Health Professionals, Unaffiliated Health Professionals, and the Public for: Internet training, Mediated Searching, Onsite Collection Access, Online Search training, and Reference Services.

Single Lend

DOCLINE feature of the LEND function that allows libraries to individually update multiple requests with different actions and reasons at one time. The Single Lend feature also allows libraries to update the Type and Form values as appropriate for each request. In Single Lend, the user selects the request to process from a list of outstanding requests.

Status Code

The status of a request that is found in the Status/Cancel function of DOCLINE.  There are DOCLINE Actions, Loansome Doc Actions, and Reasons for no fill.


A fee charge for ILL service above the base fee.  For example, charging an additional fee for providing a color copy of a request.

Time-triggered Actions

Automatic rerouting of requests based upon inaction or expiration date.

Truncated Journal Title Search

Search for a Journal Title with wildcard automatically appended at the end of search. For example, \"cell\" will retrieve titles beginning with \"cell\", \"cellular\", \"cellulose\", etc.; or \"expert review\" would review all titles beginning with \"Expert review\".


Unique Identifier found in the LocatorPlus bibliographic record of all titles in NLM's database.

Union List

An alphabetical report by title of holdings for a state/province or library group that has been established in DOCLINE.  A user can view the holdings for library groups or for a state/province to which his/her library belongs. Serial Holdings Coordinators, who have rights to update holdings for libraries other than their own, can view holdings for all appropriate library groups and states/provinces.  Union Lists are updated by NLM once a quarter.

Unique Key

A method of searching PubMed and Locatorplus that utilizes different unique identifiers such as: PubMed identifier (PMID), MEDLINE identifier (UI), ISSN, ISBN, OCLC number, and Journal Title Abbreviation.


A holding area for institution records as libraries manage their Routing Table and M/A/N Map over a period of time.