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PDFWAC 434-663-325

Compression and decompression of data.

Electronic imaging systems for bitonal images shall use the Consultative Committee on International Telegraphy and Telephony (CCITT) Group 3 or Group 4 compression and decompression techniques without proprietary alterations to the algorithm. For the storage of electronic images of records for which the state or local records committee has approved a retention period of six years or less from the date of creation, a nonproprietary lossless compression algorithm may be used if a utility program or application software option is maintained to convert images to the TIFF Group 3 or Group 4 standard. For the compression and decompression of color images a lossless algorithm, such as TIFF, Group 5, is recommended.
[Statutory Authority: RCW 40.14.020(6). WSR 00-20-038, ยง 434-663-325, filed 9/28/00, effective 10/29/00.]
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