Since 1992 all official publications have been entered in the National Library of Scotland's main catalogue. For material published before this date users wishing to consult official publications should check the online catalogue together with the following sources which are available for consultation in the Issue Hall:
- Parliamentary papers: sessional indexes
- HMSO and Stationery Office lists annotated with NLS pressmarks
- National Library of Scotland Official publications supplementary catalogue covering material published between 1962 and 1979
- India papers catalogue.
In addition to the above catalogues a number of other finding aids are available in the Library's Issue Hall. Users who fail to find what they are looking for are advised to consult Reference Services staff for assistance. For more complicated enquiries help can be provided by specialist staff from the Library's Official Publications Unit. Users are also reminded that a considerable range of material from government sources is now available as full-text documents online.