Revised Code of Washington

Wash. Rev. Code § 18.57.145 (2026)

Use of designations in combination with name

✓ current as of May 2026
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No provision of this chapter or of any other law shall prevent any person who holds a valid, unrevoked certificate to practice osteopathic medicine and surgery from using in combination with his or her name the designation "Osteopathic Physician and Surgeon" or the abbreviation of his or her professional degree, Doctor of Osteopathy (D.O.), provided he or she hold such professional degree, or any combination thereof upon his or her stationery, in any professional lists or directories or in other places where the same may properly appear as permitted within the canons of ethics approved by the board.
[ 1991 c 160 s 8; 1959 c 110 s 2.]
Notes of Decisions
Cited in 2 cases, 1964–1964 · leading case: Williamson v. Grant Cnty. Pub. Hosp. Dist. No. 1, 396 P.2d 879 (Wash. 1964).
Williamson v. Grant Cnty. Pub. Hosp. Dist. No. 1, 396 P.2d 879 (Wash. 1964). · cites it 2× “57, which provides for the certification of osteopathic physicians and surgeons and permits them to use the designation of Doctor of Osteopathy (RCW 18.57.145), and RCW 18.71, which provides for licensing of doctors of medicine and surgery.”
Williamson v. Grant Cy. Pub. Hosp. Dist., 396 P.2d 879 (Wash. 1964). · cites it 2× “57, which provides for the certification of osteopathic physicians and surgeons and permits them to use the designation of Doctor of Osteopathy (RCW 18.57.145), and RCW 18.71, which provides for licensing of doctors of medicine and surgery.”
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