If you have a question about the 14 CFR part 1, 21, 43, and 45 final rule, or related FAA guidance and policy, you may find the answer to your question on this website.

Before you submit a question, please review the published Final Rule with Preamble (PDF), the Notice of Proposed Rulemaking (PDF), and the questions we've received, and our answers to those questions that are posted on this website. If you do not find the answer to your question, we've provided instructions at the bottom of the affected regulations, orders, and advisory circulars webpages for you to follow to send your questions to us. We will review all questions we receive and will provide both the questions and our answers on this website.

Questions & answers about ...

  • Amended Regulations:
    Title 14 Code of Federal Regulations (14 CFR)
    • Part 1    Definitions and Abbreviations  (Updated 12/01/2009)
    • Part 21  Certification Procedures for Products, Articles, and Parts  (Updated 09/07/2010)
    • Part 43  Maintenance, Preventive Maintenance, Rebuilding, and Alteration  (Updated 12/03/2009)
    • Part 45  Identification and Registration Marking  (Updated 09/07/2010)
  • Affected Orders  (Updated 04/27/2010)
  • Affected Advisory Circulars (ACs)
  • General Questions regarding these rule changes, related policy, or guidance.  (Updated 09/07/2010)