8 CFR 212.3 : Aliens And Nationality (§ 1.1 To Parts 1338-1399) — (§ 1.1 To Parts 1338-1399) — Department Of Homeland Security (§ 1.1 To Parts 393-499) — Immigration Regulations (§ 100.1 To § 299.5) — Documentary Requirements: Nonimmigrants; Waivers; Admission Of Certain Inadmissible Aliens; Parole (§ 212.0 To § 212.18) — Application for the exercise of discretion under section 212(c).