Wash. Admin. Code § 480-103-999
In this chapter, the commission adopts by reference the regulations and standards in Regulations to Govern the Preservation of Records of Electric, Gas, and Water Utilities, published by the National Association of Regulatory Utility Commissioners (NARUC) as the standards for records retention for community solar companies unless otherwise specified in these rules. The commission adopts the version of this document in effect in 2007. The Regulations to Govern the Preservation of Records of Electric, Gas, and Water Utilities is a copyrighted document. Copies are available from NARUC in Washington, D.C. or at NARUC publications store online: https://maxxwww.naruc.org/forms/store/ProductFormPublic/regulations-to-govern-the-preservation-of-records. The publication is also available for inspection at the commission's offices.
Wash. Admin. Code § 480-103-999