WAC 246-817-310
WAC 246-817-310. Patient record retention and accessibility requirements
(1) A licensed dentist shall keep readily accessible patient records for at least six years from the date of the last treatment.
(2) A licensed dentist shall respond to a written request from a patient to examine or copy a patient's record within fifteen working days after receipt. A licensed dentist shall comply with chapter 70.02 RCW for all patient record requests.
(3) A licensed dentist shall comply with chapter 70.02 RCW and the Health Insurance Portability and Accountability Act, 45 C.F.R. destruction and privacy regulations.