Accession refers to the general idea of joining or adding to. It may also refer to:
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Accession (property law)
Accession has different definitions depending upon its application.
In property law, it is a mode of acquiring property that involves the addition of value to property through labour or the addition of new materials. For example, a person who ...
* Accession, the act of joining a treaty by a party that did not take part in its negotiations; see
Vienna Convention on the Law of Treaties#Signature, ratification and accession
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Ratification
Ratification is a principal's approval of an act of its agent that lacked the authority to bind the principal legally. Ratification defines the international act in which a state indicates its consent to be bound to a treaty if the parties inte ...
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EU Accession
The European Union (EU) has expanded a number of times throughout its history by way of the accession of new member states to the Union. To join the EU, a state needs to fulfil economic and political conditions called the Copenhagen criteria ...
* Accession to the throne; not to be confused with the later ceremony of
Coronation
A coronation is the act of placement or bestowal of a crown upon a monarch's head. The term also generally refers not only to the physical crowning but to the whole ceremony wherein the act of crowning occurs, along with the presentation of ot ...
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Enthronement
An enthronement is a ceremony of inauguration, involving a person—usually a monarch or religious leader—being formally seated for the first time upon their throne. Enthronements may also feature as part of a larger coronation rite.
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Accession day, when an heir becomes monarch, and its anniversary
* Accession to elected office;
inauguration
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Accession number (disambiguation) Accession number may refer to:
* Accession number (bioinformatics), a unique identifier given to a biological polymer sequence (DNA, protein) when it is submitted to a sequence database
* Accession number (library science), the unique number ...
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Accession number (cultural property)
In libraries, art galleries, museums and archives, an accession number is a unique identifier assigned to, and achieving initial control of, each acquisition. Assignment of accession numbers typically occurs at the point of accessioning or catalog ...
, a catalogue number assigned to an object when it becomes part of a library or museum collection
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Accession number (bioinformatics)
An accession number, in bioinformatics, is a unique identifier given to a DNA or protein sequence record to allow for tracking of different versions of that sequence record and the associated sequence over time in a single data repository. Becaus ...
, a unique identifier given to a biological polymer sequence (DNA, protein) when it is submitted to a sequence database
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Accession (''Star Trek: Deep Space Nine'')
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Accession Records, a record label created by Adrian Hates
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Instrument of Accession, a legal document introduced in 1935, used in 1947 to enable the rulers of the princely states formerly in British India to join India or Pakistan
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Instrument of Accession (Jammu and Kashmir)
The Jammu and Kashmir Instrument of Accession is a legal document executed by Maharaja Hari Singh, ruler of the princely state of Jammu and Kashmir, on 26 October 1947.
Parties
By executing an Instrument of Accession under the provisions of t ...
, by which that state joined the Dominion of India (1947)
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Accession Day (Jammu and Kashmir), a public holiday
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