Many aspects of the guidelines of the Text Encoding Initiative (TEI) a
re applicable to corpora and text collections, and to the texts that t
hese contain. As the first large corpus developed using mark-up confor
ming to the guidelines, the British National Corpus (BNC) is a test-be
d for many TEI-developed mechanisms. This is particularly true in the
case of the TEI header, which has three intended applications - to des
cribe a corpus, to describe an individual text, and as a free-standing
bibliographic record - all of them used by the BNC. This paper descri
bes the application of the TEI header to the BNC. It is intended that
this information should, through a description of experience on a prac
tical project, serve as a guide for those wishing to use TEI headers i
n the documentation and management of other corpora and collections of
texts.