This document outlines the 5 steps of a Brief Negotiated Interview (BNI) algorithm to address a client's substance use: 1) Raise the subject and discuss pros and cons, 2) Provide information on guidelines and risks then elicit client thoughts, 3) Use a readiness ruler to gauge readiness to change and reinforce positives, 4) Negotiate a change plan by identifying strengths and supports, having the client write steps, and offering resources, 5) Offer additional resources and close the interview by summarizing the discussion.