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In the case of electronic materials, we also use a CUL-specific method for identification and classification. E-materials are identified via their permanent holdings location. A location code of 'serv'remo' indicates that the material is an electronic material. To identify material format, CUL subject matter experts concluded that the best way is to first search the MARC 948 field for format, followed by the statistical code field. The former (948 field) is a pre-Folio way of classification. After the adoption of FOLIO, the statistical field has been used for this purpose. There is a group of e-materials acquired early on that did not contain a format code in teh 948 field, and these have been given a MARC format code from the leader field, like other physical materials.