Section 10 of the Immigration and Refugee Protection Regulations (IRPR) specifies that:

1. Subject to paragraphs 28 (b) to (d) and 139 (1) (b), an application under these Regulations would need to:
1. Be made in writing using the form provided by the Department, if any
2. Be signed by the applicant
3. Include all information and documents specified by these Regulations, including any other evidence required by the Act
4. Be accompanied by evidence of payment of the applicable fee, if any, specified in these Regulations and,
5. Identify the principal applicant and the accompanying spouse or common-law partner, if applicable
2. The application would need to, unless specified otherwise by these Regulations:
1. Contain the name, date of birth, address, nationality and immigration status of the applicant and of all family members of the applicant, whether accompanying or not, and a statement whether the applicant or any of the family members is the spouse, common-law partner or conjugal partner of another person
2. Indicate whether they are applying for a visa, permit or an authorisation
3. Indicate the class prescribed by these Regulations for which they are making this application

1.                                                               i.      If the applicant is represented in connection with the application, they would need to include the name, postal address and telephone number, and fax number and electronic mail address, if any, of any person or entity – or a person acting on its behalf – who is representing the applicant
2.                                                             ii.      If the applicant is represented for consideration in connection with the application by a person referred to in any of the paragraphs 91 (2) (a) to (c) of the Act, include the name of the body of which the person is a member and their relevant membership identification numbers
3.                                                           iii.      If the applicants had been advised, for consideration in connection with the application, by a person referred to in any of the paragraphs 91 (2) (a) to (c) of the Act, include the information referred to in points 2.c.i and 2.c.ii concerning that person
4.                                                            iv.      If the applicants had been advised, for consideration in connection with the application by an entity (or a person acting on its behalf) referred to in subsection 91 (4) of the Act, include the information referred to in paragraph 2.c.i concerning that person or entity and,

4. Include a declaration that the information provided is complete and accurate
2. The application is considered to be an application made for the principal applicant and the accompanying family members
3. An application made by a foreign national as a member of the family class would need to be preceded or accompanied by a sponsorship application specified in paragraph 130 (1) (c)
4. No sponsor can file a sponsorship application in respect of a person if the sponsor has filed another sponsorship application in respect of the same person and the authorities have not made a final decision in respect of that other application
5. The authorities would not consider a sponsorship application not made in accordance with the provisions specified in subsection (1) as an application filed in the prescribed manner for the purposes of subsection 63 (1) of the Act

Source: Citizenship and Immigration