Introduction

Before a clinic can bill auto insurers for treating an accident victim, the treatment has to be proposed and approved. The document that does the proposing is the OCF-18. This article explains what the form actually is: what it contains, how it moves through the system, and the test the Tribunal applies to everything written on it.

What the OCF-18 Is

The OCF-18 is the Treatment and Assessment Plan under section 38 of the Statutory Accident Benefits Schedule. It is a proposal document. A clinic sets out a course of treatment or an assessment, with the services, frequencies, durations and fees laid out line by line, and the insurer responds in writing within a set period. Every line on the form is a claim for payment, and every line has to be justified.

What Is On the Form

The form carries several distinct blocks of information:

  • The parties. The insured person, the insurer and policy number, and the clinic and practitioner submitting the plan.
  • The injury picture. The diagnosis and impairments, how they relate to the accident, and any relevant pre-existing conditions. This section matters because the insurer checks it against the clinical records already on file.
  • Treatment goals and expected outcomes. What the plan is trying to achieve, and by when. The Tribunal reads this section against the rest of the plan to see whether the goals are being met.
  • The goods and services. Each proposed service, the type of practitioner, the number of sessions, the frequency, and the cost per unit and in total. This is the line-by-line budget of the plan.
  • Assessment lines. Proposed assessments, such as a psychological assessment or an orthopaedic assessment. Assessments proposed on an OCF-18 are subject to a $2,000 cap per assessment under section 25(5)(a) of the Schedule.
  • Fees. Form completion and documentation support activity lines, which sit on top of the treatment itself.
  • Signatures and additional comments. The insured's consent, the practitioner's signature, and an additional comments area where supporting documents such as screening reports are attached.

How the Form Moves Through the System

The plan is submitted through HCAI. From receipt, the insurer has 10 business days to respond, agreeing or refusing each line and giving the medical and other reasons for anything it refuses, as required by section 38(8). A response that fails that duty has a built-in consequence: the plan becomes payable under section 38(11). The response and appeal mechanics are covered in our guide to insurer denials and your rights.

Two limits frame everything on the form. If the insured's injuries are predominantly minor, the entire plan sits inside the $3,500 Minor Injury Guideline cap. And if the injuries take the claimant outside the MIG, the evidence that gets them there is measured against section 18(2) of the Schedule, which demands compelling medical evidence from a health practitioner.

What Happens After Approval

Approval is not the end of the review. The form proposes assessments, and the reports those assessments produce are weighed separately when the file is disputed. When competing psychological reports exist, the Tribunal prefers the one with validity testing almost every time. Our guide to validity testing and the SIMS at the LAT covers the battery that survives that comparison.

The Three-Part Test for Every Line

Whether a plan is approved or fought over later, every line on the OCF-18 is measured against the three-part test for reasonable and necessary treatment from 2020 CanLII 37665 (ON LAT):

1. Are the treatment goals reasonable? 2. Are the goals being met to a reasonable degree? 3. Is the overall cost reasonable, considering the degree of success and the availability of other treatment?

The cautionary tale comes from the same decision: a chiropractic plan claimed 70% improvement based on notes more than two years old while describing an ongoing frozen shoulder. The goals were reasonable, but parts two and three failed. A plan that contradicts its own chart reads as a billing document, not a treatment plan.

The test explains why the form asks for what it asks for. The goals section answers part one. The clinical record answers part two. The line-by-line costs answer part three. A form filled in as an administrative exercise will fail the test the same way the chiropractic plan did.

Conclusion

The OCF-18 is a proposal with a statutory answer loop. It names the injury, the goals, the services, the fees, and the assessments, and every part of it is measured against the three-part test. The form is not complicated. The standard applied to it is.

If you submit OCF-18s for MVA patients, keep the billing side current with our roundup of 2026 LAT decisions affecting HCAI invoicing, and read every line on your next plan as the Tribunal will read it: does the goal match the record, and does the cost match the goal.