§ 529. Consolidated lien index. 1. In counties having a population of
less than five hundred thousand, the county clerk may install and
maintain a single consolidated index, in lieu of all other indices
required by law, for the purpose of indexing alphabetically all liens or
encumbrances affecting real property recorded or filed in his office,
except mortgages, lis pendens and judgments.

2. A county clerk may adopt a new indexing system utilizing
electro-mechanical, electronic or any other method he deems suitable for
maintaining the indexes.