Scope and purpose
The statute addresses petitions used to establish classification; approval of classification is distinct from admission or adjustment. Form I-130 and Form I-360 have different purposes even when both concern family circumstances.
Related rules and practical context
The marriage-fraud provision in INA §204(c) is a separate petition issue. In survivor cases, evidence and confidentiality need careful handling; a VAWA petition does not automatically settle all Form I-485 requirements.