What is Form 815? Form 815, also known as a Health Undertaking, is a Department of Home Affairs form used in Australian visa applications where an applicant is required to agree to health follow-up after arriving in Australia or after their visa is granted. Being asked to sign Form 815 does not automatically mean your visa will be refused. In many cases, it means the Department is prepared to continue processing or grant the visa, provided you agree to attend follow-up health checks in Australia. A health undertaking is commonly requested where a visa applicant’s health examination shows exposure to