Establishes the Washington state patient safety act.

Requires the department of health to: (1) With stakeholder input, adopt patient assignment limits and recommend quality indicators;

(2) Upon receipt of a complaint, conduct an audit of a hospital's compliance with the act and investigate complaints of violations of the act; and

(3) Maintain, for public inspection, records of any civil penalties, administrative actions, or license suspensions or revocations imposed on hospitals.

Requires a hospital to: (1) Beginning June 30, 2016, submit a staffing plan to the department of health on at least an annual basis, implement the staffing plan, and assign nursing personnel to each patient care unit in accordance with the plan; and

(2) Regularly collect information regarding nurse staffing and submit it to the department of health semiannually.