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The SRU Editorial Board has developed a -proposal for CQL indexes, for discussion at the March 1-2 meeting. http://www.loc.gov/standards/sru/march06-meeting/bib-indexes.html The proposal is in three parts and covers three context sets (1) mods, (2) marc, (3) openurl. These are intended to server distinctly different purposes. The MODS set is intended for bibliographic searching. The proposed MODS indexes are based on the MODS schema - they do not presume that the data being searched is MODS, but MODS is used for reference semantics. (This somwhat analogous to Z39.50 bib-1 and MARC. The semantics of the bib-1 core Use attributes are defined in terms of MARC.) The MARC set is for searching on specific MARC fields, subfields, and substrings; it is intended for users who are familiar and more comfortable with the MARC format and prefer to formulate queries using MARC vocabulary. The OpenURL CQL Context Set consists of a set of indexes corresponding to OpenURL keys - for book, journal, dissertation, patent, and scholarly community service. These indexes are primarily intended for the use of resolvers, which upon receiving an openURL, wish to locate the desired item via SRU. These are not intended for general bibliographic searching. We welcome comments and discussion on this proposal. --Ray Denenberg