Site authorization is the written approval by a representative of the organization, business, or field site where you intend to do the research granting permission to conduct your research. Site authorization is required when doing field work at an off-campus location that requires partnership/cooperation with a specific organization.
If you are working abroad, you may need approval of relevant local authorities/organizations/NGO’s
If you are working in schools, you may need approval of the principal/teacher/superintendent or director of research
If you are working with local non-profits or businesses, you may need approval of the director/owner
If you are doing research in another city or state, you may need approval of the relevant local authorities
If you are doing research at an event, you may need approval of the organizer of the event