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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 email 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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