White papers, green papers, treaties, government responses, draft bills, reports from Royal Commissions, reports from independent inquiries and various government organisations can be released as command papers, so called because they are presented to Parliament formally "By Her Majesty's Command".
Command papers are numbered. Since 1870 they have been prefixed with an abbreviation of "command" which has changed over time to allow for new sequences.
|1833–1869||1 to 4222|
|C.||1870–1899||C.1 to C.9550|
|Cd.||1900–1918||Cd.1 to Cd.9239|
|Cmd.||1919–1956||Cmd.1 to Cmd.9889|
|Cmnd.||1956–1986||Cmnd.1 to Cmnd.9927|
|Cm.||1986–2018||Cm.1 to Cm.9756|
|CP||2019–||CP 1 upwards|
Command papers are:
- produced by government departments
- printed on behalf of Her Majesty's Stationery Office
- presented to Parliament "by Command of Her Majesty" by the appropriate government minister
- recorded by the House of Commons and the House of Lords
- published by government departments on gov.uk
- subject to statutory legal deposit