The instructions are in the PDF you fill to apply the RTD:
H-DECLARATION OF GUARANTOR A guarantor is a person other than yourself who confirms your identity. A family member or a person who resides at the same address as the applicant may be the guarantor provided that this individual meets the specified requirements. The guarantor must meet the following criteria : • be a Canadian citizen or a permanent resident living in Canada; • have known you (the applicant) personally for at least six (6) months. To know you personally means your guarantor is able to confirm aspects of your personal attributes; • know you well enough to be confident that the statements you have made on the application form are true; • be accessible to the Passport Program for verification; • be included in one (1) of the following groups: • Dentist, medical doctor or chiropractor • Judge, magistrate or police officer (municipal, provincial or RCMP) • Lawyer (member of a provincial bar association), or notary in Quebec • Postmaster • Minister of religion authorized under provincial or territorial law to perform marriages • Notary public • Optometrist • Mayor • Pharmacist • Veterinarian • Senior administrator or teacher in a university • Senior administrator in a community college (including CEGEP) • Professional engineer (P. Eng., Eng. in Quebec) • Professional accountant (member of APA, CA, CGA, CMA, PA or RPA) • Principal of a primary or secondary school • Nurse Practitioners The above list is not a recognition or endorsement by the Passport Program, Immigration, Refugees and Citizenship Canada of professional status or superior qualifications You or your guarantor can complete this section, with the exception of the four fields in bold which must be completed by your guarantor. The guarantor must perform the following three (3) tasks free of charge: 1. Complete or validate the information entered in the section 2 - Declaration of Guarantor. The guarantor must complete the following four fields in bold: A) I have known the applicant for (number of months), B) Signature of guarantor, C) Date, D) Signed at. Ensure you have completed and signed all three (3) pages of the application before submitting it to your guarantor. 2. Write "I certify this to be a true likeness of (your name)" on the back of one (1) of your photos and sign it. 3. If applicable, sign and date a copy of each document to support your identity (see section L). The Passport Program reserves the right to request a new guarantor. The applicant must not assist the guarantor in performing their duties. If your guarantor requires assistance, contact the Passport Program. If you have not known an eligible guarantor for at least six (6) months, complete form PPTC 326, Statutory Declaration in Lieu of Guarantor for a Travel Document, available at any Passport Program regional office or contact the Passport Program (see section E). The form must be completed at your expense before a person who is authorized by law to administer an oath or solemn affirmation. This may delay the processing time of the Canadian travel document.
