edition statement change-major change, 246 added entry for minor title change

ccm 16.4.2. Edition statement (LCRI 21.3B)
16.4.2. Edition statement (LCRI 21.3B)
If the change in an edition statement indicates a change in the subject matter or a change in physical medium,
This is a change over past practice where changes in edition statements were always considered minor.make a new description.
Major changes:
North American ed. ® North and Central American ed. {change in scope}
Health professional/researcher ® Health industry
Minor changes:
Doctor’s ed. ® Physician’s ed.
International ed. ® International version
16.4.3. Type of resource: newspapers and monographic series
Do not make a new record when a serial changes its format from a newspaper to a regular serial (or vice versa) or from a serial to a monographic series (or vice versa). Instead, give the information in a note. In the case of a newspaper, leave the serial type code as "n."(fixed field 008/21) In the case of a monographic series/serial, the serial type code may be updated to reflect the most recent format.
Ser tp: n
130 0# $a Looking glass (Hatfield, Ark.)
245 14 $a The looking glass.
260 ## $a Hatfield, Ark. : $b Gene Owen, $c [1975]-
310 ## $a Monthly, $b July 1976-
321 ## $a Weekly, $b Apr. 3, 1975-June 17, 1976
362 0# $a Vol. 1, no. 1 (Apr. 3, 1975)-
500 ## $a Published as a weekly newspaper, 1975-June 1976; as a monthly magazine, July 1976-

This is a change over past practice where changes in edition statements were always considered minor.
Lcri 21.3B. Serials
3) The edition statement changes (see rule 12.1F1) and the change indicates a change in subject matter or a change in physical medium.
Aacr2 12.1F1.

Ceg 260 field Subfield $b is always preceded by a space-colon- space ( : ).

ccm 7.2.4. Variant titles that are minor title changes
AACR2 21.2C2b lists the categories of minor changes to the title proper. Once a change is determined to be minor, decide how to note the change. Some form of note should always be given, whether it be explicit (e.g., "Some issues have title: ..." (246)) or general (e.g. "Title varies slightly" (500)). Consider the value of providing the additional access when deciding whether to give a 246 field for the minor change. If the change affects searching or if it is thought that another cataloger might consider the change to be major, prefer giving the change explicitly to show that you have determined it to be minor. When an added entry (246) is needed, the minor change is given explicitly in the note. If no added entry is necessary, a "Title varies slightly" note may suffice.
245 10 $a Annual report / $c California Military Institute. {made up example}
246 1# $i Some issues have title: $a Annual report of the California Military Institute
245 00 $a Freeport daily journal.
246 1# $i Alternate issues published with title: $a Chicago daily telegraph
but ...
In cataloging record:
245 00 $a Water quality data summary statistics.
On later issue: Water quality data summary statistics for the year 1990
Added to record:
500 ## $a Title varies slightly.
For more information on minor changes and further examples, see Module 16.
In some cases, there may already be a 246 field present, created under the provisions of LCRI 21.30J (see CCM 7.2.3. above). For example, the original title contained an ampersand and a 246 was given using the spelled out form "and". In later issues the ampersand is replaced on the piece by "and". In this case, a 500 "Title varies slightly" note will suffice.
If the changes occur after the first five words in a long title and have little significance, prefer the "Title varies slightly" note.

CCM 7.2.3. Variant titles that provide access to different forms of words in titles given in field 245 or 246
If the title proper or a variant title contains words that the user might search in a different form, give a 246 field using the variant form. Such access may be given for compound words, spelled out forms of symbols, such as "and" for "&", and spelled out numbers, etc. Give an added entry, in most cases, but do not give a note when this form of the title does not appear elsewhere on the piece (246 3#). LCRI 21.30J lists the situations in which added entries may be given. While you do not have to give every possible added entry, the LCRI says "when in doubt, be liberal in assigning additional title added entries."
Give added entries when the following situations occur within the first five words of the title (excluding initial articles)
a. Abbreviations
Give word(s) spelled out.
245 00 $a St. Louis directory of ...
246 3# $a Saint Louis directory of ...
b. Ampersand (&)
Give as "and" (or equivalent in another language).
245 00 $a Catalogue & index.
246 3# $a Catalogue and index
c. Compound and hyphenated words
Give as one word, two words, or both, as appropriate. (Note: This is generally needed only for online searching. Systems vary in their treatment of hyphenated words. For example, OCLC treats a hyphenated word as one word in a truncated search and as two words in a title browse.)
245 00 $a Forest products year-book. {made up example}
246 2# $a Forest products year book
246 2# $a Forest products yearbook
d. Letters and initialisms (including acronyms)
If an initialism contains punctuation or spaces between the letters, give a variant title omitting the punctuation or spaces; do not make an added entry to add spaces or punctuation.
245 00 $a A.-G. Chemie ...
246 3# $a AG Chemie
245 00 $a AADE editor's journal.
{no 246 for A.A.D.E. editor's journal}
The spelled out form of the initialism or acronym may be given when this can be determined. Note: This form of access is not called for in LCRI 21.30J and is optional. It is most useful when the initialism is not well known or might be misinterpreted and the spelled out form
This type of title was formerly given in field 212.is not given elsewhere in the record. Give this type of access only when considered useful, not routinely.
245 00 $a CD computing news.
246 2# $a Compact disc computing news
245 00 $a CD rateline.
246 2# $a Certificate of deposit rateline
e. Numbers and dates

In cases where a number has been given as part of the title proper, give an added entry for the spelled-out form, and for the Arabic numeral if the number was given as a Roman numeral. (Fig. 7.11.)
245 00 $a 2 AM magazine.
246 3# $a Two AM magazine

Fig. 7.11.
f. Signs and symbols
If a sign or symbol can be given in the title proper (e.g., +), give an added entry for the word represented by the sign or symbol (e.g., plus) in the language of the title proper. For signs and symbols that cannot be represented, see CCM 6.1.3.b.
245 00 $a Denturo +.
246 3# $a Denturo y
g. "Commonly known as" titles
In cases where a serial is conventionally known by a variant title that does not appear on the piece, consider providing an added entry for the title together with a note (AACR2 12.7B4.1).
245 00 $a Library of Congress information bulletin.
246 1# $i Commonly known as: $a LCIB
When a title exemplifies several of the conditions that would warrant an added entry according to LCRI 21.30J, determine which will be most useful and try to combine when possible.
245 00 $a Year-book & calendar of events {made up example}
246 3# $a Yearbook and calendar of events
7.2.4. Variant titles that are minor title changes
AACR2 21.2C2b lists the categories of minor changes to the title proper. Once a change is determined to be minor, decide how to note the change. Some form of note should always be given, whether it be explicit (e.g., "Some issues have title: ..." (246)) or general (e.g. "Title varies slightly" (500)). Consider the value of providing the additional access when deciding whether to give a 246 field for the minor change. If the change affects searching or if it is thought that another cataloger might consider the change to be major, prefer giving the change explicitly to show that you have determined it to be minor. When an added entry (246) is needed, the minor change is given explicitly in the note. If no added entry is necessary, a "Title varies slightly" note may suffice.
245 10 $a Annual report / $c California Military Institute. {made up example}
246 1# $i Some issues have title: $a Annual report of the California Military Institute
245 00 $a Freeport daily journal.
246 1# $i Alternate issues published with title: $a Chicago daily telegraph
but ...
In cataloging record:
245 00 $a Water quality data summary statistics.
On later issue: Water quality data summary statistics for the year 1990
Added to record:
500 ## $a Title varies slightly.
For more information on minor changes and further examples, see Module 16.
In some cases, there may already be a 246 field present, created under the provisions of LCRI 21.30J (see CCM 7.2.3. above). For example, the original title contained an ampersand and a 246 was given using the spelled out form "and". In later issues the ampersand is replaced on the piece by "and". In this case, a 500 "Title varies slightly" note will suffice.
If the changes occur after the first five words in a long title and have little significance, prefer the "Title varies slightly" note.

CCM 7.2.2. b. Caption title. (Field 246 2nd indicator "6")
Definitions given in italics are taken from AACR2.A title given at the beginning of the first page of the text. The table of contents and editorial pages are not considered to be text; therefore, a variant title appearing on these pages is coded as "other title" (see below) rather than "caption title." Do not confuse the variant form “caption title” with the "Title from caption" note that is used when there is no cover or title page and the caption is the chief source.

Caption title. A title given at the beginning of the first page of the text. (AACR2)
Masthead. A statement of title, ownership, editors, etc., of a newspaper or periodical. In the case of newspapers it is commonly found on the editorial page or at the top of page one, and, in the case of periodicals, on the contents page. (AACR2)

CCM 7.2.2. g. Other title. (Field 246 2nd indicator "3")
A title appearing on a source that is not covered by those listed above. The general term "other title" is most often used for a variant title appearing in the masthead or on the contents or editorial page. Consider titles appearing on a page that precedes the title page (a "half-title") or a binder's title (i.e., binding is not that of the publisher) to be "other titles." Include also in this category cover titles that are not the chief source and are found in an inverted format on bilingual serials. Do not consider titles found on the chief source to be "other title"; these titles are recorded as other title information, in an "At head of title" or general note, or are not recorded at all.
245 00 $a Chevrolet Caprice, Monte Carlo, El Camino service manual.
246 30 $a Caprice, Monte Carlo, El Camino service manual
246 13 $a Service manual covering Caprice, Monte Carlo and El Camino