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Official form guide
USCIS Form I-363 is a Request to Enforce Affidavit of Financial Support and Intent to Petition for Legal Custody for Public Law 97-359 Amerasian, filed by the beneficiary or their representative. If the beneficiary is under 18 years of age, any agency or individual (other than the sponsor) may file this form.
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USCIS Form I-363 is a Request to Enforce Affidavit of Financial Support and Intent to Petition for Legal Custody for Public Law 97-359 Amerasian, filed by the beneficiary or their representative. If the beneficiary is under 18 years of age, any agency or individual (other than the sponsor) may file this form.
Plain English
This form allows someone who received a petition for P.L. 97-359 Amerasian status to ask U.S. Citizenship and Immigration Services (USCIS) to enforce a promise of financial support and intent to seek custody. It is used when the guarantee made by the sponsor needs official backing.
Submission Date
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Sponsor is deceased
The sponsor's estate is not liable under the guarantee if they die.
✓ Check Part 1 of Form I-363.
Filing on behalf of a minor beneficiary
If the applicant is under 14 years of age, their parent or legal guardian may sign for them.
✓ Ensure Parent/Guardian signs in Part 4.
Need to update address after filing
Non-U.S. citizens must notify USCIS of a new address within 10 days of moving from the previous residence.
✓ Submit change of address via www.uscis.gov/addresschange.
Form I-363 (and submit notification)
Need to add extra text or details
Use Part 7 for additional information if there is not enough space in other parts of the request.
✓ Ensure you type or print clearly on the attached sheet(s).
Used an interpreter during completion
The interpreter must complete their section, and a preparer must sign if they are not the applicant themselves.
✓ Verify both Part 5 and Part 6 are fully completed.
The filing window triggers upon the beneficiary requiring enforcement. If the filer is not a U.S. citizen, they must notify USCIS within 10 days of moving from their previous residence. The form is considered properly filed only once accepted by USCIS for initial processing.
Checklist
Form I-363
The completed form itself · Form PDF (Page 1)
Part 4: Applicant Statement
Signature and date of the applicant, or parent/legal guardian if applicable · Form PDF (Page 2)
Part 5: Interpreter's Section
Name, address, phone numbers, email, and signature/date of interpreter · Form PDF (Page 2)
Part 6: Preparer's Section
Signature of the person who prepared the request (if not the applicant) · Form PDF (Page 2)
OAN/A-Number
Account Access Notice receipt number starting with IOE, or A-Number · Instructions p.2
Filing Fee Information
Specific fee details · Form G-1055 (available at www.uscis.gov/forms)
Field map
Applicant Info
3 items
Your current legal name.
MM/DD/YYYY.
Alien Registration Number if previously assigned.
Details
1 items
The specific reason or legal basis for filing this form.
Evidence
1 items
List of documents supporting this application.
Signatures
2 items
Sign under penalty of perjury.
MM/DD/YYYY.
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Fillable formOpen in Editor->The current edition of USCIS Form I-363 is dated 04/01/24; the instructions direct users to www.uscis.gov/I-363 for the most current filing information.
Quick Facts
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What is the difference between an A-Number and an OAN?
The A-Number is listed on the form, while the OAN (Offices Account Number) can be found at the top of the Account Access Notice mailed to you.
→ If you do not have a receipt number beginning with IOE, you do not have an OAN.
Who must sign Form I-363?
The applicant must sign the request, or if the applicant is under 18, the parent or legal guardian must sign (if applicable).
→ Ensure your signature is original; a typed name alone is insufficient.
Where should the filer list their contact information?
Daytime telephone number, mobile telephone number (if any), and email address (if any) must be provided in Part 4 of Form I-363.
→ These details are required alongside the applicant's signature on that section.
What happens if USCIS asks for more documents?
USCIS may request additional information or evidence to support the filing, or they may require the originals of any copies submitted.
→ Be prepared to provide documentation beyond just the forms themselves.
Can I file Form I-363 online or must it be mailed?
The source does not specify a mandatory method, but instructions detail requirements for completeness regardless of submission type.
→ If mailing, ensure all required signatures and information are present before dropping it in the mail.
What happens if my address changes after filing?
A non-U.S. citizen must notify USCIS of their new address within 10 days of moving from the previous residence.
→ Do not send a change of address request directly to the USCIS Lockbox.
Workflow map
Current
⚠ If something goes wrong
This form allows someone who received a petition for P.L. 97-359 Amerasian status to ask U.S. Citizenship and Immigration Services (USCIS) to enforce a promise of financial support and intent to seek custody. It is used when the guarantee made by the sponsor needs official backing.
The beneficiary may file Form I-363 if they require enforcement of the guarantee, or any agency or individual having legal custody of the applicant (if the beneficiary is under 18 years of age) may file it.
The form collects details in various parts, including the Applicant’s Statement and Contact Information (Part 4), Interpreter’s Contact Information (Part 5), and the Preparer's Contact Information (Part 6). It also gathers specific address information on Form p.2 regarding mailing vs. physical addresses.
The form must be submitted within 10 days of moving from a previous residence if the filer is not a U.S. citizen, though this applies to an address change notification, not necessarily the initial filing date.
Filing locations are subject to current information on the USCIS website at www.uscis.gov/I-363. The form must be submitted to USCIS; a specific Lockbox is not mentioned as the required submission point.
Fill out Form I-363 by typing or printing legibly in black ink. Complete Part 4 (Applicant’s Statement) by signing and dating it, providing contact info. If an interpreter was used, complete Parts 5 and 6 accordingly, ensuring all required signatures are present.
If Form I-363 is not signed, it will be rejected with a notice that the form is deficient, requiring correction and resubmission before USCIS accepts it.
The A-Number is listed on the form, while the OAN (Offices Account Number) can be found at the top of the Account Access Notice mailed to you. If you do not have a receipt number beginning with IOE, you do not have an OAN.
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