§ 382.33 Advance notice requirements.
(a) Except as provided in paragraph (b) of this section, a carrier shall not require a qualified individual with a disability to provide advance notice of his or her intention to travel or of his or her disability as a condition of receiving transportation or of receiving services or accommodations required by this part.
» Read More…14 CFR Part 382 - Nondiscrimination on the Basis of Disability in Air Travel
Title 14, Chapter II, Part 382 covers traveling with a service animal. Relevant sections have been reproduced below. Though not required by Part 382, it is a good idea to inform the airline that you will be traveling with your service animal. (Section 382.33 lists situations that do require advanced notice.)
» Read More…Advice for Passengers with Service Animals
From a Department of Transportation publication offering Guidance Concerning Service Animals in Air Transportation
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The inspiration for PetFlight.