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Form 4 (6430-41)

Certificate of Renewal

Certificat de renouvellement

A Form 4 is needed when an involuntary patient still meets the criteria as their current certificate runs out. It rests on a fresh examination by the attending physician, and each renewal sets a longer maximum period of detention than the last.

At a glance

Checked October 2026

Form number
Form 4 (6430-41)
Issued by
Ontario Ministry of Health
Where
Ontario
Completed by
Attending physician at the psychiatric facility
Format
Fillable PDF
Language
English and French

What the Form 4 is for

An involuntary patient can be held for up to two weeks on a Form 3. If they still meet the criteria at the end of that period, the attending physician renews their status with a Form 4. Section 20 of the Mental Health Act allows up to one additional month on a first renewal, two months on a second, and three months on a third. After that, the physician uses a certificate of continuation instead.

The Form 4 is different from the Form 5, which changes an involuntary patient to informal or voluntary status, and from a community treatment order, which applies outside hospital.

Who completes it

The attending physician completes and signs it after examining the patient. The patient doesn’t complete any part, but they must be given a written notice and a rights adviser must be notified.

How to fill in the certificate

Patient, physician, facility and examination date

Print the patient’s name, your name, the facility, and the date of your examination. Then state the patient’s current status: either subject to a certificate of involuntary admission or subject to an existing certificate of renewal, with the date it expires. Use the expiry date from the actual certificate, not an estimate.

Box A

You must be satisfied that both criteria are met. The patient’s mental disorder will likely result in serious bodily harm to themselves or another person, or serious physical impairment, unless they remain in custody. The patient isn’t suitable for continuation as an informal or voluntary patient.

Box B

You must be satisfied that all six criteria are met. These are the five Form 3 criteria for incapable patients, including the substitute decision-maker’s consent, plus a sixth: the patient isn’t suitable for continuation as an informal or voluntary patient.

Expiry date and signature

The certificate is effective on the date you sign it. Enter the date it expires, in day, month and year, matching the maximum period for this renewal: one month for the first, two for the second, three for the third. Then sign and date it.

Common reasons it’s found defective

  • Neither Box A nor Box B completed. The form says one of them is required for it to be valid.
  • An expiry date longer than the Act allows for this renewal number.
  • The current certificate’s expiry date missing or wrong.
  • Signed after the previous certificate expired, by which point the patient is already deemed voluntary.
  • No notice to the patient or rights adviser after signing.

Submitting and who pays

The certificate is completed and filed with the officer in charge of the facility, who reviews it for compliance and must release the patient if it isn’t properly completed and the patient isn’t re-examined. OHIP pays the physician under fee code K629, which covers all re-certifications of involuntary admission, including completing the forms.

Get the official form

Download the current version from Ontario Ministry of Health each time. Forms change without notice, and an old edition can be returned.

Official page ↗ PDF ↗ Version française ↗

Medulla Forms

Fill Form 4 (6430-41) from the visit and the chart.

Upload the fillable PDF to your practice's forms once. Medulla fills it from the visit and the chart open in your EMR, leaves blank anything the record doesn't support, and opens the form for your review. When it's done, save it to the patient's chart in one click.

Free 1-month trial. No credit card required.

Sources for this guide

Questions

Questions we hear a lot.

How long does a Form 4 renewal last?

Under the Mental Health Act, a first certificate of renewal allows up to one additional month, a second up to two additional months, and a third up to three additional months.

What comes after the third renewal?

Further extensions use a certificate of continuation, a separate form, each allowing up to three additional months. On the first certificate of continuation, and every fourth one after that, the patient is deemed to have applied to the Consent and Capacity Board.

What happens if the certificate expires without a renewal?

An involuntary patient whose authorized period of detention has expired is deemed to be an informal or voluntary patient.

Does the patient have to be told about a renewal?

Yes. The attending physician must promptly give the patient a written notice and notify a rights adviser, the same as for a certificate of involuntary admission.

Is patient information secure?

Yes. Medulla has a SOC 2 Type II report from an independent auditor, is HIPAA, PIPEDA, and PHIPA compliant, and is built and hosted in Canada, so patient data stays in the country and never gets pasted into consumer AI tools. Everything is encrypted in transit and at rest. See how we protect patient data.

More questions? Browse help.medulla.ca.