A Commissioner of Oaths or a Commissioner for taking Affidavits is empowered under provincial legislation to administer and witness the swearing of oaths or solemn affirmations in the taking of an affidavit for any potential legal matter. The City Clerk or designate are, by virtue of office, commissioners for taking affidavits. This authority is conferred by the Commissioners for taking Affidavits Act, 1990. It is at the exclusive discretion of the individual Commissioner of Oaths whether or not they choose to sign the document. The Commissioner of Oaths may refuse to sign the document and refer you to a lawyer. 

Please note that the City of Cambridge does not have a Notary Public on staff. For additional information regarding Commissioner of Oaths services in Ontario and how to access these services, please see visit the Province of Ontario's website


Signature by Commissioner of Oaths  - $35.00 (plus HST)


Verified documents containing sworn statements are known as affidavits. The City of Cambridge can prepare and/or sign affidavits. All parties required to sign the document must be present and provide valid photo identification in order to have a document commissioned. 

Commissioning Process

Contact the Clerk's Office to:

  • Ensure that there is a Commissioner of Oaths available
  • Get assistance in determining if the Commissioner is authorized to sign your document(s)

Please note: the Clerk or designate reviews the document to determine if it meets our specifications. We reserve the right to refuse commissioning services of any document.

Please note: Commission of documents is performed in person at City Hall. Alternative formats and communication support to help facilitate the commissioning process are available upon request and such requests may be directed to the Clerks Division at clerks@cambridge.ca or by phone to 519-740-4680, etc. 4079. 

Documents the City Will Commission
  • · City of Cambridge generated documents (planning appeals);

    · Committee of Adjustment Applications;

    · Domestic and Foreign Pension documents (Proof of Life);

    · Financial and other banking documents (provided they specifically ask for a Commissioner of Oaths and only the identity of the deponent is being confirmed);

    · Statutory Declaration of Apprenticeship hours;

    · Canadian Citizenship forms;

    · Delayed Statement of Birth;

    · Adult Name Change document;

    · Child Name Change document;

    · Statutory Declaration of Lost Identification (must include the police report number);

    · Sworn Statement for the Transfer of a Used Motor Vehicle in the Province of Ontario;

    · Affidavit for Vehicle Ownership Change

    · Statutory Declaration for OSAP;

    · Statement of Common Law Status / Supporting Children;

    · Travel letter / affidavit (parents’ permission to allow children to travel outside of the country)

    · Affidavit of Unregistered Vehicle;

    · Statutory Declaration for Motor Vehicle Deals Compensation Fund;

    · Immunization Health Form; and

    · Age of Majority or BYID Card applications.

Documents the City is Not Authorized to Commission

A Commissioner of Oaths is not a Notary Public. If you require a document to be "notarized" as opposed to "commissioned", the person who administers the oath or affidavit is a Notary Public - generally a lawyer and not a Commissioner of Oaths. The Municipality does not have a Notary Public. 

  • · Any documents specifically requiring a notary public;

    · Invitation letters

    · Wills, Living Wills, Codicils to Wills or Estate Settlement documents;

    · Power of Attorney;

    · Divorce or separation documents;

    · Custody documents;

    · Real estate matters (including sale, purchase and mortgages)

    · Court, legal or civil issue related documents;

    · Declaration or Claimant and Indemnity;

    · Declaration of Replacement of Shares;

    · Statutory Declaration of Progress Payment Holdback Security Deposits;

    · Statement of Arrears;

    · Declaration of a Translator; and

    · Certified true copies.

Before Having Your Document Commissioned
  • The document must be in English.
  • You must present one original piece of government-issued photo identification (for example, a valid driver's license). A Health Card is not considered a valid form of government-issued photo identification. 
  • You must be 18 years of age to take an oath in regards to a document. If you are under 18, it will be at the discretion of the Commissioner to make the determination if the child is capable of knowing right from wrong. 
  • If a witness is required, bring someone who knows you. The witness must not be your spouse, child or relative. They may need to swear an Affidavit of Witness that you are who you claim to be and that they saw you sign the document. 
Having Your Document Commissioned 
  • Read the document completely in advance. This is extremely important as you will be swearing that the statements in the document are true. We cannot provide you with any advice with respect to the documents you are swearing. When signing under oath, you are swearing as if you are testifying in a court of law that the document contains true statements. 
  • Bring everything that you will need, including any letter of instruction from the person or office requesting the sworn statement. 
  • If a sworn statement indicates that there are copies of documents to be attached, you must bring those original documents with you, as well as the copies to be attached. Otherwise, the oath cannot be administered by the Commissioner. 
  • Do not sign the document in advance. You must sign the document in the presence of the Commissioner. 
Travel Forms

A Commissioner of Oaths can sign a travel form. A travel form is recommended by the Canadian Border Services Agency when a minor is travelling with only one parent or with any person other than both parents. The parent or parents not travelling with the child can fill out the Consent Letter for Children Travelling Abroad form at the City Office. 

The process will take time to complete and the same $35.00 + tax fee and above conditions apply. Please allow sufficient time and call ahead to ensure a Commissioner will be available. If you have not planned ahead for this, you may not be able to obtain the travel form and it may compromise your ability to travel across international borders. 

Under no circumstances will a travel form be signed by a Commissioner without the appropriate parent(s) present or without valid government issued photo identification. 

Right to Refuse Service 
  • We have the right to refuse to commission documents where there is a possibility that we may be required to testify in a court of law. 
  • We reserve the right to refuse to commission documents for persons who are not capable of understanding them. 

 For more information: