The National Library of Luxembourg (Bibliothèque nationale du Luxembourg - BnL) archives all material published within the territory of Luxembourg—as well as material published abroad concerning Luxembourg—that is submitted to it for legal deposit.
A publication is defined as any document, be it paper or digital, that is generally produced in multiple copies for the purpose of being made public, even if the target audience is restricted.
The legal deposit is compulsory and must be made before a claim is made by the BnL.
Each year, the BnL compiles the national bibliography of the publications deposited with it.
The natural or legal person who is required to submit the legal deposit is:
In the case of doctoral dissertations, application papers and research papers, legal deposit copies are submitted by the public or private institution that is the recipient of the documents.
To be subject to the legal deposit requirements by the National Library of Luxembourg, a publication must be edited in Luxembourg, which is to say:
The publication in question may be:
The following publications are not subject to legal deposit, regardless of their medium:
Printed and digital publications must be deposited at the BnL no later than 1 month after being made available to the public.
Doctoral theses, application papers and research papers must be deposited no later than 4 months after being sent to the recipient institution.
There is no charge for legal deposit submissions to the National Library of Luxembourg.
The legal deposit declaration must be submitted using MyGuichet.lu (see 'Forms / Online services').
The declaration form must be submitted with the printed and/or digital legal-deposit copies of the publications. In return, the BnL issues a legal deposit receipt to the applicant.
Persons who wish to submit printed publications can send them by post or submit them in person at the BnL reception desk.
Digital publications on a physical medium may be sent electronically in accordance with the BnL's instructions. If electronic submissions are not possible for justified technical reasons, digital publications must be submitted on an appropriate physical medium determined by the Library:
Publications with no physical medium can be submitted as soon as:
In other cases, the producer must submit, at the Library's request, any information or tools required to copy the publications.
If this type of publication cannot be submitted online for justified technical reasons, it must be delivered on an appropriate physical medium determined by the Library:
The number of copies to be submitted depends on the type of publication:
For choreographic works, handwritten musical scores and theatrical works for which fewer than 10 copies have been reproduced or published, as well as identical reissues of such publications, only 1 copy must be deposited.
For reprints with no changes other than spelling or typographical changes, 2 copies must be deposited.
Doctoral theses, application papers and research papers must be deposited with 1 hardcopy and 1 digital copy.
It should be noted that the submitted copies must be of perfect quality and identical to the copies intended for the public.
One copy of all works (books and pamphlets) concerning the language and literature of Luxembourg is sent by the BnL to the National Centre for Literature (Centre national de littérature).