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CACI, AASI and Special Issuance side by side

The same five questions asked of each, with the FAA's words one press away.

  • From 12 FAA documents
  • Checked by Crosscheck 14 October 2026
  • Not affiliated with the FAA

Five questions, three pathways

Read across a row to compare, or down a column for one pathway.

QuestionCACISpecial IssuanceAASI
Who makes the first decisionCACI

The examiner, at the exam.

Special Issuance

The Federal Air Surgeon, the Manager of the AMCD, or an RFS.

AASI

An FAA physician.

Is an FAA Authorization involvedCACI

No. The Guide calls it a regular issue.

Special Issuance

Yes. It is what the FAA grants.

AASI

Yes. The examiner reissues under it.

What the examiner can doCACI

Issue, when all CACI criteria are met and the applicant is otherwise qualified.

Special Issuance

Not issue an initial Authorization. For some conditions, or missing documents, the examiner defers the exam to the FAA.

AASI

Reissue, once the AASI's specialized criteria are met and the applicant is otherwise qualified.

At later examsCACI

The worksheet says how often the information is asked for again.

Special Issuance

The pilot must again show the Federal Air Surgeon, for a new certificate or a Re-Authorization.

AASI

The Authorization's attachments specify what the treating physician(s) must provide for the reissuance determination.

Why the pilot's own FAA letter mattersCACI

The examiner keeps the CACI supporting documents on file rather than submitting them to the FAA at that time.

Special Issuance

It specifies the class, and may limit the Authorization's duration, condition a new Authorization on later medical tests, examinations, or evaluations, state operational limitations needed for safety, or condition the Authorization and any second- or third-class certificate based on it on compliance with a statement of functional limitations.

AASI

Its attachments specify what the treating doctors provide.

View FAA sources for this comparison

Who makes the first decision

  1. CACI

    The examiner, at the exam.

    If all the CACI criteria are met and the applicant is otherwise qualified, the AME may issue on the first exam or the first time the condition is reported to the AME without contacting AMCD/RFS.

    FAA source: Guide for Aviation Medical Examiners – CACI Conditions. FAA date 29 April 2026. Checked by Crosscheck 14 October 2026

  2. Special Issuance

    The Federal Air Surgeon, the Manager of the AMCD, or an RFS.

    The authority of the Federal Air Surgeon under the special issuance section of part 67 (14 CFR 67.401) is also exercised by the Manager, AMCD, and each RFS.

    FAA source: Guide for Aviation Medical Examiners – Authorization for Special Issuance and AASI. FAA date 10 March 2023. Checked by Crosscheck 14 October 2026

  3. AASI

    An FAA physician.

    An FAA physician provides the initial certification decision and grants the Authorization in accordance with 14 CFR 67.401.

    FAA source: Guide for Aviation Medical Examiners – AASI for Third-Class. FAA date 31 December 2024. Checked by Crosscheck 14 October 2026

Is an FAA Authorization involved

  1. CACI

    No. The Guide calls it a regular issue.

    which allow AMEs to regular issue if the applicant meets the parameters of the CACI Condition Worksheet.

    FAA source: Guide for Aviation Medical Examiners – CACI Conditions. FAA date 29 April 2026. Checked by Crosscheck 14 October 2026

  2. Special Issuance

    Yes. It is what the FAA grants.

    A medical certificate of the appropriate class may be issued to a person who fails to meet one or more of the established medical standards if that person possesses a valid agency issued Authorization and is otherwise eligible.

    FAA source: Guide for Aviation Medical Examiners – Authorization for Special Issuance and AASI. FAA date 10 March 2023. Checked by Crosscheck 14 October 2026

  3. AASI

    Yes. The examiner reissues under it.

    Following the granting of an Authorization for Special Issuance of a Medical Certificate (Authorization) by the AMCD or RFS, an Examiner may reissue a medical certificate to an applicant with a medical history of an initially disqualifying condition once the AASI's specialized criteria is met and the applicant is otherwise qualified.

    FAA source: Guide for Aviation Medical Examiners – Special Issuances. FAA date 28 August 2024. Checked by Crosscheck 14 October 2026

What the examiner can do

  1. CACI

    Issue, when all CACI criteria are met and the applicant is otherwise qualified.

    If all the CACI criteria are met and the applicant is otherwise qualified, the AME may issue on the first exam or the first time the condition is reported to the AME without contacting AMCD/RFS.

    FAA source: Guide for Aviation Medical Examiners – CACI Conditions. FAA date 29 April 2026. Checked by Crosscheck 14 October 2026

  2. Special Issuance

    Not issue an initial Authorization. For some conditions, or missing documents, the examiner defers the exam to the FAA.

    Examiners may not issue initial Authorizations.

    FAA source: Guide for Aviation Medical Examiners – Authorization for Special Issuance and AME Assisted Special Issuance (AASI). FAA date 28 August 2024. Checked by Crosscheck 14 October 2026

  3. Special Issuance

    Not issue an initial Authorization. For some conditions, or missing documents, the examiner defers the exam to the FAA.

    For some conditions, or if missing required documentation, the AME must defer the examination to the FAA for review and/or further investigation.

    FAA source: How do I get a Medical Certificate and what to expect during the AME examination. FAA date 14 May 2026. Checked by Crosscheck 14 October 2026

  4. AASI

    Reissue, once the AASI's specialized criteria are met and the applicant is otherwise qualified.

    Following the granting of an Authorization for Special Issuance of a Medical Certificate (Authorization) by the AMCD or RFS, an Examiner may reissue a medical certificate to an applicant with a medical history of an initially disqualifying condition once the AASI's specialized criteria is met and the applicant is otherwise qualified.

    FAA source: Guide for Aviation Medical Examiners – Special Issuances. FAA date 28 August 2024. Checked by Crosscheck 14 October 2026

At later exams

  1. CACI

    The worksheet says how often the information is asked for again.

    Applicants for first- or second- class must provide this information annually; applicants for third-class must provide the information with each required exam.

    FAA source: CACI – Hypertension Worksheet. FAA date 13 April 2022. Checked by Crosscheck 14 October 2026

  2. Special Issuance

    The pilot must again show the Federal Air Surgeon, for a new certificate or a Re-Authorization.

    An airman must again show to the satisfaction of the Federal Air Surgeon that the duties authorized by the class of medical certificate applied for can be performed without endangering public safety in order to obtain a new medical certificate and/or a Re-Authorization.

    FAA source: Guide for Aviation Medical Examiners – Authorization for Special Issuance and AASI. FAA date 10 March 2023. Checked by Crosscheck 14 October 2026

  3. AASI

    The Authorization's attachments specify what the treating physician(s) must provide for the reissuance determination.

    The Authorization letter is accompanied by attachments that specify the information that treating physician(s) must provide for the re-issuance determination.

    FAA source: Guide for Aviation Medical Examiners – Special Issuances. FAA date 28 August 2024. Checked by Crosscheck 14 October 2026

Why the pilot's own FAA letter matters

  1. CACI

    The examiner keeps the CACI supporting documents on file rather than submitting them to the FAA at that time.

    Document the appropriate notes in Block 60 and keep the supporting documents in your files; they do not need to be submitted to the FAA at this time.

    FAA source: Guide for Aviation Medical Examiners – CACI Conditions. FAA date 29 April 2026. Checked by Crosscheck 14 October 2026

  2. Special Issuance

    It specifies the class, and may limit the Authorization's duration, condition a new Authorization on later medical tests, examinations, or evaluations, state operational limitations needed for safety, or condition the Authorization and any second- or third-class certificate based on it on compliance with a statement of functional limitations.

    In granting an Authorization, the Federal Air Surgeon specifies the class of medical certificate authorized to be issued and may do any or all of the following: Limit the duration of an Authorization; Condition the granting of a new Authorization on the results of subsequent medical tests, examinations, or evaluations; State on the Authorization, and any medical certificate based upon it, any operational limitation needed for safety; or Condition the continued effect of an Authorization, and any second- or third-class medical certificate based upon it, on compliance with a statement of functional limitations issued to the person in coordination with the Director of Flight Standards or the Director's designee

    FAA source: Guide for Aviation Medical Examiners – Authorization for Special Issuance and AASI. FAA date 10 March 2023. Checked by Crosscheck 14 October 2026

  3. AASI

    Its attachments specify what the treating doctors provide.

    The Authorization letter is accompanied by attachments that specify the information that treating physician(s) must provide for the re-issuance determination.

    FAA source: Guide for Aviation Medical Examiners – Special Issuances. FAA date 28 August 2024. Checked by Crosscheck 14 October 2026

How CACI worksHow Special Issuance worksHow AASI works

This reports what the FAA has published. It is not medical advice, and it does not say how the FAA or an examiner will decide a case.

Where Crosscheck's FAA information comes fromOfficial FAA references