WAC 194-40-300
WAC 194-40-300. Documentation concerning coal-fired resources
Each utility must publish by June 1, 2027, and each year thereafter, an attestation by a properly authorized representative of the utility certifying that the utility's allocation of electricity for Washington retail electric load in the prior calendar year did not include any electricity generated at a coal-fired resource. The utility must provide additional documentation as the auditor may require.