DtSt:  Type of Date/Publication Status

No dates given; B.C. date involved. Use blanks in Dates if one or more of the dates are B.C.E. dates. Enter the appropriate code and B.C.E. date or dates in field 046.

DtSt			b
Dates			,
046			q ǂb 650 ǂd 400
264		0	ǂc [between 650 B.C. and 400 B.C.]

DtSt			b
Dates			,
046			s ǂb 2000~ ǂ2 edtf
264		0	ǂc [approximately 2000 B.C.]

DtSt:			b
Dates:			,
046			k ǂb 2350 ǂd 2300
264		0	ǂc [approximately 2350 B.C.-approximately 2300 B.C.]

DtSt			b
Dates			,
046			q ǂb 604 ǂd 562
264		0	ǂc [between 604 B.C. and 562 B.C.]

Detailed date. Use if the issue date includes year and month or year, month, and day. Code uu is used for the final two characters of Date 2 if the day is unknown for an event known to have occurred on a specific day, such as an original broadcast date. Leave the final two characters of Date 2 coded blank if there is no day of month given on the item and no day can be inferred. Use the form yyyy,mmdd.

DtSt			e
Dates			2005,05
264		1	Sacramento, Calif. : ǂb Association of California Water Agencies, ǂc [2005]
500			"May 2005"
[Issue date is May 2005. Day is "not applicable," because the publication is identified by month only and you cannot infer a date.]

Single known date/probable date. A single year is on the item as the date of distribution, publication, release, production, execution, or writing.

Use for:

• Unpublished items that have single dates of execution
• Probable, approximate, or conjectural (uncertain or qualified) dates that can be represented by four digits
• Single part unpublished items with a single dates that have been executed over a period of time, such as a painting

Do not use code s for the following:

• Single items having a probable range of years. Use code q.
• Collections. Use code k or i as appropriate.
• Unpublished items that have a range of dates of execution. Use code i.

DtSt			s
Dates			198u,
260			New York : ǂb Oxford University Press, ǂc [198-]
[Pre-RDA]

DtSt			s
Dates			19uu,
260			London : ǂb Academic Press, ǂc [19--]
[Pre-RDA]

DtSt			s
Dates			197u,
260			Bloomington : ǂb Indiana University Press, ǂc [197-?]
[Pre-RDA]

DtSt			s
Dates			1965,
260			Paris : ǂb Presses universitaires de France, ǂc [1966, i.e. 1965]
[Pre-RDA]

DtSt			s
Dates			1985,
260			Sacramento, Calif. : ǂb California State Board of Equalization, ǂc [approximately 1985]
[Pre-RDA hybrid]

DtSt			s
Dates			1967,
260			Tacoma, Wash. : ǂb American Plywood Association, ǂc 1967/1968
[Pre-RDA]

DtSt			s
Dates			1954,
260			London : ǂb Her Majesty's Stationery Office, ǂc 1954, cover 1955
[Pre-RDA]

DtSt			s
Dates			1961,
260			Berlin : ǂb Deutsche Buch-Gemeinschaft, ǂc 1961 printing
[Pre-RDA]

DtSt			s
Dates			1966,
260			Amsterdam : ǂb Elsevier, ǂc 1965 [i.e. 1966]
[Pre-RDA]

DtSt			s
Dates			1936,
260			New York : ǂb Knopf, ǂc 1936, t.p. 1943
[Pre-AACR2. Ignore the date of a later impression if that date follows the publication date and qualifies its position on the publication.]

DtSt			s
Dates			1911,
260			Chicago, Ill. : ǂb Sears, Roebuck, ǂc 1911, 1913 printing
[Pre-RDA. Ignore a date qualified by the word printing unless that date is the only date.]

DtSt			s
Dates			1963,
260			London : ǂb Macmillan, ǂc c1963, t.p. 1965
[Pre-AACR2. Ignore the date of a later impression if that date follows a copyright date. Use this convention if you cannot find the publication date of the first impression of the first edition.]

DtSt			s
Dates			2012,
264		1	Cambridge, Massachusetts : ǂb Harvard University Press, ǂc 2012

DtSt			s
Dates			1939,
264		1	Firenze : ǂb Casa editrice Adriano Salani, ǂc anno 18 [1939]

DtSt			s
Dates			1991,
040			ǂe dacs ǂe rda
264		1	[Place of publication not identified] : ǂb [publisher not identified], ǂc [1991?]

DtSt			s
Dates			1983,
264		1	Yerushalayim : ǂb E. Fisher, ǂc 744 [1983 or 1984]
[Non-Gregorian dates with no single Gregorian equivalent]

Inclusive dates of collection. Use Date 1 and Date 2 for the earliest and latest years covered. If a single year represents the inclusive dates, enter that year in both Date 1 and Date 2. Use only in records with BLvl c or d.

Reprint/reissue date and original date. Enter reprint/reissue date in Date 1 and date of original in Date 2.

Use code r for the following:

• Re-releases of motion pictures and video recordings in the same medium
• Reissues of sound recordings in the same medium or a different medium
• Previously published resources
• Offprints

Evidence that a resource is a reprint may be recorded in the title, statement of responsibility, edition statement, series statement, or a note. The series or edition statement may have the word reprint.

The word reprint in the publisher's name may be evidence that the resource is a reprint. However, some publishers whose names include the word reprint also publish original works. Therefore, the publisher's name alone is not sufficient evidence.

If a resource qualifies as a republication and only slight changes have been made (e.g., minor corrections or new material has been added, such as an introduction, preface, foreword), treat the resource as a republication.

Use for resources reproduced from two or more works, works that have first appeared in another country, and works that have first appeared under a different title, unless there is evidence it is a translation.

Do not use code r for the following:

• For resources that have changed enough to be considered new editions
• Treat resources labelled as reprints issued by the same publisher as printings rather than formal reprints. For more information, see chapter 4, When to Input a New Record.
• New editions, including new editions published under a different title
• Electronic reproductions follow provider-neutral guidelines. For more information, see chapter 3.1.1, Online resources.
• Print reproductions follow provider-neutral guidelines. For more information, see chapter 3.1.2, Print-on-demand publications and photocopies.
• Microform reproductions (including theses and dissertations whether previously published or not). Code DtSt and Dates for the original. Enter date information for the microform reproduction in field 533 and in field 539 subfields ǂa, ǂb, and ǂc.
• Translations
• Preprints or prepublications
• Reprint of serials are coded as c, d, or u as applicable. For more information on dates for reprint serials, see Dates, Serials.

For motion pictures and videos, evidence of re-release can be identified as follows:

• The graphic representation, form, content, or subject content is essentially the same as the original issue
• The change is from one film size to another (e.g., 35 mm to 16 mm)
• The change is from one medium for sound to another
• The resource has been issued separately and also in a series without any changes other than those listed above

Do not use code r for the following motion pictures and videos:

• Change in language or addition of subtitles in a language other than that of the sound track
• Change from silent to sound or vice versa
• Change from black-and-white to color or vice versa
• Change from still to motion or vice versa
• Change in the purpose of the film (e.g., released for educational purposes) when editing reflects that change in purpose
• Change in running time from shorter to longer or vice versa
• Change in form (e.g., a motion picture re-released as a video recording)

Publication date and copyright date. The item has a publication, release, production, or execution date and a copyright date. Date 1 is the year of publication, release, production, or execution; Date 2, the year of copyright notice or phonogram copyright notice. Treat deposit dates (preceded by D.L., Dépot légal, etc.) as copyright dates.

Dates unknown. Use for naturally occurring objects. Use also for [date of publication not identified] and similar designations in cataloging when no other code applies or in other cases in which no reasonable date can be determined. In such cases, both Date 1 and Date 2 are coded uuuu.

Questionable date. A range of years is the only date that can be specified (e.g., between 1824 and 1840). Give the earliest year in Date 1 and latest in Date 2.

Continuing resource currently published. The continuing resource is currently being published. Currently published is defined as an item for which an issue or update has been received within the last three years.

Continuing resource ceased publication. Either continuing resource has ceased publication or a change in author or title has caused a successive entry record to be created.

Continuing resource status unknown. No clear indication exists that publication of the continuing resource has ceased.