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Contact Us About Retrospective Rating

Retro contact information — central office in Tumwater
Phone (general information) 360‑902‑4851
Fax 360‑902‑4258
Or Retro Staff List.
Mailing address
Retrospective Rating Program
Department of Labor & Industries
PO Box 44180
Olympia, Washington  98504-4180.

Physical address
Retrospective Rating Program
Department of Labor & Industries
7273 Linderson Way SW
Tumwater, Washington 98501-5414.
Sign up for the Lni‑Retro‑News e-mail list.

Address changes

Any change of address for retrospective rating participants must be in writing (either by postal mail or fax). The request should include:

  • Business/organization name.
  • L&I account ID number and Retro ID number or UBI (Unified Business Identifier) number.
  • Name/telephone of person to contact if there are any questions.

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