- Statutory authority is found at 8 U.S.C. 1182, Sec 212 INA
- Regulatory guidance -- 8 C.F.R. §§ 212, 1212; 22 C.F.R. 40
- Immigration regulations http://uscis.gov/graphics/lawsregs/8cfr.htm
- State Dept. Regs http://foia.state.gov/regs/search.asp
- Policy Manuals
- 9 F.A.M. part 40 http://foia.state.gov/regs/search.asp
- O.I. 212
- Policy Manuals