AABB accredited DNA testing is used to prove biological relationships for immigration applications. Laboratories that perform AABB accredited DNA testing must follow certain standards and procedures. When primary documents like birth certificates fail to prove a claimed relationship, immigration authorities may request a confidential DNA test from an AABB accredited lab. These tests are scientifically valid and reliable means to determine relationships like paternity, maternity or siblingship. Many people choose to get AABB accredited DNA testing done after receiving requests for further evidence or notices of intent to deny from immigration authorities. The tests are accepted as valid proof by immigration and can help avoid delays or denials of applications.