Never rely solely on U.S. Government advice or instructions. U.S. immigration law is complex and confusing. Do not assume that the overburdened, under-managed USCIS service centers, which can be prone to errors, inconsistencies and delays, necessarily know or follow USCIS regulations in all cases, particularly those requiring unusual procedures and additional effort. The USCIS publication entitled
“Instructions for Completing Petition for a Nonimmigrant Worker Form I-129”, dated December 10, 1991, and its instructions for O and P petitions, is out of date and wrong. Be wary of the filing instructions and fee schedules on such forms as the I-539 and I-824, and always check the
USCIS web site for updates on instructions and fee schedules. The USCIS web site is especially useful and user-friendly, with a wide range of accurate, current information. However, even the web-based guidance from USCIS, its National Call Service Center, and U.S. consulates abroad can be inconsistent and inaccurate. If written or oral information you receive from USCIS or the consulates contradicts this publication, follow the guidance on this site - unless you are confident the conflict is due to a recent development or localized practice.