Editing Engineering drawing (section)

===Title block===
Every engineering drawing must have a title block.<ref>
United States Bureau of Naval Personnel.
[https://books.google.com/books?id=rzw7AQAAIAAJ "Engineering Aid 1 & C."].
1969.
p. 188.
</ref><ref>
Andres M. Embuido.
[https://books.google.com/books?id=t-KtEyjmgBQC "Engineering Aid 1 & C"].
1988.
p. 7-10.
</ref><ref>
[https://books.google.com/books?id=unwwAAAAYAAJ "Farm Planners' Engineering Handbook for the Upper Mississippi Region"].
1953.
p. 2-5.
</ref>

The title block (T/B, TB) is an area of the drawing that conveys [[header (computing)|header]]-type information about the drawing, such as: 
* Drawing title (hence the name "title block")
* Drawing number
* [[Part number]](s)
* Name of the design activity (corporation, government agency, etc.)
* Identifying code of the design activity (such as a [[Commercial and Government Entity|CAGE code]])
* Address of the design activity (such as city, state/province, country)
* Measurement units of the drawing (for example, inches, millimeters)
* Default tolerances for dimension callouts where no tolerance is specified
* Boilerplate callouts of general [[specification (technical standard)|specs]]
* [[Intellectual property]] rights warning

[[ISO 7200]] specifies the data fields used in title blocks.
It standardizes eight mandatory data fields:<ref name="fg_title_block" >
Farhad Ghorani.
[http://tolerancing.net/engineering-drawing/title-block.html "Title Block"].
2015.
</ref>
* Title (hence the name "title block")
* Created by (name of drafter)
* Approved by
* Legal owner (name of company or organization)
* Document type
* Drawing number (same for every sheet of this document, unique for each technical document of the organization)
* Sheet number and number of sheets (for example, "Sheet 5/7")
* Date of issue (when the drawing was made)

Traditional locations for the title block are the bottom right (most commonly) or the top right or center.